Durable indexable inserts for efficient metalcutting
Indexable inserts are hardened cutting elements designed to deliver consistent material removal in metalworking, providing cost-effective tool life management and repeatable results for turning, milling and drilling operations. Suited for machining steel, stainless and heat-resistant alloys, these inserts offer rapid edge renewal and reduced downtime through simple indexing, while versions optimised for internal coolant significantly improve chip control and thermal management in demanding applications. By choosing the right insert grade and geometry you gain improved tool life, predictable wear behaviour and better surface finish thanks to enhanced chip control, with key benefits including wear-resistant carbide, internal coolant compatibility and reliable chip breaking.
CNGA120404TM-2 WBH30 WBH30 Wendeplatten - Walter Tools
Take advantage of CBN hardness and precision geometry to achieve consistent results in hard turning: the combination of WBH30 CBN grade and a rhombic 80° form delivers long tool life and process stability for hardened steels. Order the insert directly via Metav Werkzeuge or consult the Metav team for application-specific recommendations. CNGA120404TM-2 WBH30 — Turning indexable insert for hard machining (Walter Tools) CNGA120404TM-2 WBH30 is a turning indexable insert designed for high‑wear, high‑hardness applications in industrial machining. CBN grade for hard machining Rhombic 80° geometry 0.4 mm corner radius Negative 0° clearance for stable cutting Reliable performance on hardened components The CBN composition of this grade makes it especially suited to machining hardened steels where abrasive wear and high contact stresses dominate. The CBN matrix provides markedly higher wear resistance than conventional carbide grades, which translates into more consistent tool life and reduced tool changes. For production environments where repeatability is critical, the WBH30 grade offers stable cutting behaviour and predictable performance under sustained loading. Geometry that stabilises the cutting process A rhombic 80° insert form combined with a corner radius of 0.4 mm supports secure engagement and controlled chip formation on interrupted and continuous cuts. The negative 0° clearance enhances edge strength, reducing the risk of chipping when machining tough or hardened sections. This geometry delivers an improved balance between strength and surface finish, enabling productive hard turning with lower scrap rates. Predictable surface quality and repeatability Tolerance class G and consistent edge preparation contribute to uniform component surfaces from one index to the next. The robust edge and chip control features reduce variability in workpieces, meaning fewer in‑process adjustments and a steadier quality output. When surface integrity and dimensional repeatability are priorities, the combination of CBN hardness and precise geometry reduces rework and inspection time. Production benefits: efficiency and lower downtime By extending tool life and offering stable wear characteristics, the insert reduces interruptions for tool changes and process tuning. The insert’s design supports longer uninterrupted runs and a lower total cost per component in hard turning operations. For manufacturing lines focused on throughput and process security, the Walter CBN series assists in maintaining steady cycle times and predictable maintenance intervals. Application scope and integration The insert is part of the Walter CBN / Hartstoff series and is intended primarily for the machining of hardened steels (ISO group H), including prehardened materials. The CNGA120404TM‑2 geometry fits standard turning toolholders that accept rhombic 80° inserts and is compatible with machining strategies that prioritise edge strength and wear resistance. Integration into existing tooling systems is straightforward, enabling a rapid transition to CBN‑based performance where hard turning is required. For application advice or to request cutting data and availability for Walter Tools CBN inserts, contact Metav Werkzeuge GmbH at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored recommendations and fast response Technical Data Article number: CNGA120404TM-2-WBH30-WALTER ISO designation: CNGA120404TM-2 WBH30 Manufacturer: Walter Tools Product type: Turning indexable insert Series: Walter CBN / Hartstoff Grade: WBH30 Facts Plate size: 12 mm Thickness: 0.4 mm Corner radius: 0.4 mm Clearance angle: 0° (negative) Plate form: Rhombic 80° Chipbreaker: 2 Tolerance class: G Special features CBN cutting material (CBN grade WBH30) Suitable for hardened steels (ISO group H) Suitable for prehardened steel applications Robust edge for hard turning Series designation: Walter CBN / Hartstoff Execution: A FAQ What materials is this insert intended for? The CNGA120404TM-2 WBH30 insert is engineered primarily for hardened steels (ISO group H) and is suitable for prehardened steel applications common in hard turning. How does the WBH30 grade improve tool life compared with carbide? The WBH30 CBN grade offers superior wear resistance under high contact stress and temperature, resulting in longer life and more consistent performance than conventional carbide grades in hard machining. Which geometry benefits are provided by the rhombic 80° form? The rhombic 80° shape combines a strong cutting edge with flexible mounting options, improving stability on both continuous and interrupted cuts while supporting good chip control. Is the insert compatible with standard turning holders? Yes, the CNGA120404TM-2 form fits holders designed for rhombic 80° inserts; verification of holder compatibility is recommended prior to first use. What does the negative 0° clearance mean for cutting? A negative 0° clearance increases edge robustness and reduces the likelihood of edge failure when machining hard or tough materials, favouring durability over shear‑dominant geometries. Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany Protected trademarks and trade names are the property of their respective owners. Brand names and protected product names are mentioned for explanatory purposes only. There is no affiliation between Metav Werkzeuge GmbH and the mentioned brands. The listed article is an original, factory‑new product of the respective manufacturer.
CNGA120404TM-M2 WBH10 Wendeplatten - Walter Tools
Take advantage of the combination of extreme wear resistance, a stable edge geometry and clear suitability for hardened steels to maintain consistent production quality in hard turning operations. The CBN grade WBH10 ensures long tool life under high contact stress while the rhombic 80° form and 0° negative rake deliver reliable cutting stability. Order the CNGA120404TM-M2 WBH10 directly via Metav Werkzeuge or ask our consultants if needed. CNGA120404TM-M2 WBH10 indexable turning insert — CBN grade for hard machining, Walter Tools A CNGA120404TM-M2 WBH10 indexable turning insert designed for precision hard turning of hardened and pre-hardened steels in production environments CBN grade WBH10 for hard materials Rhombic 80° geometry for turning 0° negative rake for stable cutting Corner radius 0.4 mm for robust edge High wear resistance for consistent hard turning performance The CBN-based WBH10 grade is developed for demanding hard machining tasks and delivers exceptional wear resistance when cutting hardened steels (ISO group H). In practical terms, this means fewer insert changes and longer uninterrupted cycles on components that demand high surface integrity. The grade balances hardness and fracture resistance so that stable chip formation and predictable tool life become the norm in repetitive production runs. Geometry engineered to improve cutting stability and edge life The rhombic 80° shape combined with a 0° negative rake provides a rigid cutting edge that resists mechanical shock and edge chipping during heavy or interrupted cuts. The 0.4 mm corner radius supports robust edge strength without compromising achievable surface finish, while the M2 chipbreaker helps control chips in a wide range of depths of cut. Together these geometry choices translate into lower vibration, reliable dimensional control and improved process stability for turning operations. Suited for hardened and pre-hardened materials in precision applications Designed primarily for the machining of hardened steels and applicable to pre-hardened steel, the insert is intended for finishing and semi-finishing passes where surface quality and repeatability are critical. Depending on the workpiece alloy and process window, the WBH10 grade may also be considered for certain cast materials or high-temperature alloys when wear resistance and edge stability are the priority. The result is a versatile option for shops that handle components with elevated hardness levels. Practical selection and process benefits in series production As an indexable solution from the Walter CBN / Hartstoff series, the insert supports straightforward tool management and inventory control in production shops. The robust grade and geometry reduce overall tooling consumption and help maintain cycle times under load, fostering cost-efficiency over the life of a job. For process planning, match cutting parameters to the insert’s robustness: modest to firm feeds with controlled cutting speeds typically deliver the most consistent performance when working with hardened materials. For further optimisation, technical advisers can provide recommended starting parameters for specific machine and workpiece combinations. For production-critical hard turning, choose the Walter Tools CNGA120404TM-M2 WBH10 insert and contact Metav Werkzeuge for ordering or tailored technical advice at info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: CNGA120404TM-M2-WBH10-WALTER SKU: CNGA120404TM-M2-WBH10-WALTER Product type: Turning insert (indexable) Series: Walter CBN / Hartstoff Grade: WBH10 Facts Size: 12 mm Thickness: 4 mm Corner radius: 0.4 mm Rake angle: 0° (negative) Tolerance class: G Special features CBN grade WBH10 for hard machining Rhombic 80° insert shape Chipbreaker: M2 Suitable for hardened steels (ISO H) Applicable to pre-hardened steel FAQ Which materials can be machined with this insert? The CNGA120404TM-M2 WBH10 insert is intended primarily for hardened steels (ISO H) and is suitable for pre-hardened steel applications; the WBH10 CBN grade offers the wear resistance required for those material groups. What are the key geometric details of the insert? The insert features a rhombic 80° form, a corner radius of 0.4 mm, a 0° negative rake and an M2 chipbreaker, providing a balance of edge strength and chip control for hard turning. For which turning operations is this insert recommended? This indexable turning insert is designed for finishing and semi-finishing in hard turning processes where stable cutting and surface integrity are required, making it suitable for serial production of hardened components. How does the WBH10 grade affect tool life and process stability? The WBH10 CBN grade is engineered for high wear resistance and stable cutting under the elevated contact stresses of hardened-metal machining, resulting in longer insert life and more predictable cycle times. Manufacturer/Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany Protected trademarks and product names are the property of their respective owners and are mentioned here for explanation only. There is no affiliation between our company and the trademark holders. The listed article is an original, new product of the manufacturer.
CNGA120404TM-MW2 WBH10C WBH10C Wendeplatten - Walter Tools
Combining the WBH10C CBN grade's wear resistance with a Rhombic 80° geometry and a 0.4 mm nose radius, this insert offers extended tool life and consistent surface quality in hard-turning applications; Order the CNGA120404TM-MW2 WBH10C directly via Metav Werkzeuge or ask our consultants if needed CNGA120404TM-MW2 WBH10C — turning indexable insert, CBN grade (Walter Tools) The CNGA120404TM-MW2 WBH10C is a CBN-grade turning insert engineered for hard turning and finish operations on hardened steels. WBH10C CBN grade for hard turning Rhombic 80° insert geometry 0° negative relief for robust cutting 0.4 mm nose radius for fine finishes Consistent performance for hardened steels and hard turning The combination of WBH10C and CBN cutting material gives a marked improvement in wear resistance when machining hardened steels (ISO group H). The high thermal stability of CBN reduces flank wear and preserves the cutting edge under elevated temperatures, which translates into fewer tool changes and more predictable cycle times. This stability supports higher productivity by maintaining dimensional accuracy over longer tool life, delivering a clear cost-benefit in series production where changeover time is costly. The paragraph describes why the material choice matters and how it affects process reliability. Geometry designed for stability and controlled cutting forces The Rhombic 80° geometry and the 0° negative relief create a robust cutting edge that resists chipping under heavy or interrupted cuts. A negative relief increases edge strength and is particularly suited to rigid setups and deeper cuts, while the 0.4 mm nose radius balances load distribution and surface finish, enabling consistent part quality without sacrificing edge durability. The integrated MW2 chipbreaker optimises chip formation for the intended feed range, supporting controlled evacuation and reducing the risk of secondary damage to the workpiece or toolholder. Better surface finish and reliable chip control By combining a modest nose radius with an engineered chipbreaker, this insert supports repeatable surface quality in finishing passes. The MW2 chipbreaker limits long, stringy chips and promotes short, manageable chips that protect the tool and workpiece. For operations where reproducible roughness and minimal post-processing are required, the insert’s design helps achieve target tolerances with fewer interventions. The clear chip geometry also assists in maintaining coolant access and reduces thermal peaks at the cutting zone, contributing to consistent dimensional stability. Application guidance and practical advantages in the workshop Ideal for hard turning and pre-hardened steel operations, the insert is specified for stable, process-oriented machining where tool life and reproducibility matter. The Walter CBN / Hartstoff series is intended for demanding wear conditions and offers an alternative to conventional carbide solutions when machining beyond the typical hardness range. Use appropriate negative insert holders and ensure a rigid clamping arrangement to exploit the insert’s strengths. The result is reduced downtime, fewer insert changes and improved throughput, which supports leaner production and enhances overall process security. For dependable hard-turning performance with the Walter Tools CNGA120404TM-MW2 WBH10C insert, contact Metav Werkzeuge for supply and technical advice via info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number / SKU: CNGA120404TM-MW2-WBH10C-WALTER Designation: CNGA120404TM-MW2 Grade: WBH10C Series: Walter CBN / Hartstoff Product type: Drehwendeschneidplatte Facts Insert size: 12 Thickness: 04 Nose radius: 0.4 Relief angle: 0° (negative) Insert shape: Rhombus 80° Chipbreaker: MW2 Application group: H (hardened steels) Special features Material grade: WBH10C (coated CBN) Suitable for hardened and pre-hardened steel Series: Walter CBN / Hartstoff Manufacturer: Walter Tools FAQ Which materials is this insert intended for? The CNGA120404TM-MW2 WBH10C insert is designed primarily for hardened steels (ISO group H) and is suitable for pre-hardened steel applications where CBN performance is required. What does WBH10C signify and why choose CBN? WBH10C denotes a Walter Tools CBN grade optimised for hard machining. CBN offers superior wear resistance and thermal stability compared with carbide when cutting hardened materials. When is a 0° negative relief advantageous? A 0° negative relief provides a stronger cutting edge for interrupted cuts, heavy depths of cut and rigid setups, improving edge life and reducing the likelihood of chipping in demanding operations. How does the MW2 chipbreaker affect machining? The MW2 chipbreaker promotes controlled chip formation and evacuation, supporting consistent surface finish and reduced risk of re-cutting chips, which is particularly beneficial in automated or unattended processes. Can this insert replace carbide for all operations? For machining at elevated hardness levels, CNGA120404TM-MW2 WBH10C with CBN is typically superior to carbide in longevity and stability; however, carbide may remain preferable for softer materials or where impact resistance is the primary concern. Manufacturer / Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen, Germany Protected trademarks and trade names are the property of their respective owners. Brand names and trademarks are mentioned for explanation only. There is no connection between our company and the named brands. The offered item is original, factory-new goods supplied by the manufacturer.
CNGA120404TS-2 WBK20 WBK20 Wendeplatten - Walter Tools
Take advantage of the combination of CBN wear resistance, a robust rhombic 80° geometry and precise corner control for reliable, high‑productivity turning of hardened components; order the CNGA120404TS-2 WBK20 insert directly via Metav Werkzeuge or request advice from our consultants for process matching CNGA120404TS-2 WBK20 Rhombic 80° indexable turning insert, Walter Tools A CNGA120404TS-2 WBK20 indexable turning insert engineered for wear‑intensive and hardened‑steel turning tasks, offering a negative 0° rake for secure chip formation CBN grade WBK20 for high wear resistance Negative 0° rake angle for secure cutting Rhombic 80° form with 0.4 mm corner radius Two-step chipbreaker for controlled chip flow Built for high‑duty, wear‑resistant turning The insert’s core advantage is its CBN construction, which the WBK20 grade delivers for applications with extreme abrasion and high contact temperatures. CBN is designed primarily for hardened steels and, depending on the specific grade matrix, for certain castings or superalloys. Using a CBN insert reduces flank wear and extends tool life, which in turn lowers changeover frequency and increases uptime on serial production lines. The negative geometry contributes to a secure cutting edge under heavy engagement, improving process stability and dimensional consistency. Geometry that balances strength and finish A rhombic 80° shape combined with a 0.4 mm corner radius provides a robust cutting edge that tolerates interrupted cuts while still enabling acceptable surface quality in finishing passes. The 0° (negative) rake increases edge strength and reduces the tendency for chipping when machining tough or hardened materials. The tolerance class G ensures consistent fit in standard toolholders, simplifying tool inventory management and ensuring repeatable results across machines. Controlled chip flow and integration into production The dual chipbreaker configuration supports predictable chip formation and evacuation in a wide range of feed and depth‑of‑cut combinations. This chip control cuts down on manual intervention and reduces the risk of machine downtime due to entangled chips. The insert’s nominal size and thickness facilitate straightforward integration into existing tool systems; however, the material suitability should be checked against the product matrix to confirm optimal selection for the specific workpiece and machining conditions. Economic and operational benefits for workshops Adopting a CBN indexable insert from Walter Tools can lead to measurable cost‑efficiency through longer tool life and fewer tool changes in demanding turning operations. The robust design supports higher process reliability, which benefits batch production and reduces scrap rates. For workshops aiming to improve throughput while maintaining precision, this insert offers a practical balance of performance and predictable handling, backed by a recognised tooling brand. For application guidance on Walter Tools CBN inserts or to order the CNGA120404TS-2 WBK20 directly, contact Metav Werkzeuge GmbH at info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: CNGA120404TS-2-WBK20-WALTER SKU: CNGA120404TS-2-WBK20-WALTER Product type: Indexable turning insert Designation: CNGA120404TS-2 WBK20 Facts Insert size: 12 Thickness: 0.4 mm Corner radius: 0.4 mm Shape: Rhombus 80° Rake angle: 0° (negative) Chipbreaker: 2 Tolerance class: G Special features Grade: WBK20 (CBN) Series: Walter Schneidstoffsorte - Serie offen ISO designation: CNGA120404TS-2 WBK20 Material info: Katalogabhängig Note: Check material suitability per product matrix Manufacturer: Walter Tools FAQ What materials is this insert suitable for? The CNGA120404TS-2 WBK20 insert uses a CBN grade designed primarily for hardened steels and, depending on the grade matrix, selected castings or superalloys; consult the product matrix for exact workpiece compatibility. How does the 0° (negative) rake affect cutting performance? A 0° negative rake on the insert increases edge strength and resistance to chipping, making the insert suitable for heavy or interrupted cuts where a secure cutting edge is essential. What benefit does the rhombic 80° shape provide? The rhombic 80° geometry offers versatility in turning operations, combining edge strength for roughing with the ability to achieve good surface quality in finishing passes when using the correct feeds and speeds with the insert. How does the chipbreaker influence machining? The two‑step chipbreaker promotes controlled chip formation and evacuation, reducing the likelihood of chip entanglement and minimising machine stoppages during continuous production with the Walter Tools insert. Is special tooling required to use this insert? No special tooling beyond a compatible CNGA‑style toolholder is required; the insert conforms to standard indexable insert interfaces and tolerance class G for reliable seating and repeatable positioning. Protected trademarks and trade names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanation. There is no affiliation between our company and the named brands. The offered item is an original, factory‑new product from the manufacturer. Manufacturer/Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany
CNGA120408EM-2 WBS10 WBS10 Wendeplatten - Walter Tools
High wear resistance from the WBS10 CBN grade and the rhombic 80° geometry combines for consistent performance; the 0.8 mm corner radius balances edge strength and surface finish. Order the CNGA120408EM-2 WBS10 directly via Metav Werkzeuge or consult our advisors for application guidance. CNGA120408EM-2 WBS10 indexable turning insert (Walter Tools) — CBN grade, Rhombic 80° CNGA120408EM-2 WBS10 is an indexable turning insert designed for wear-intensive turning tasks, offering CBN performance for hardened materials and a rhombic 80° geometry for versatile lathe applications. CBN grade WBS10 for hardened steels Rhombic 80° geometry for stable cutting Corner radius 0.8 mm for finish and edge strength Negative 0° relief for secure clamping Higher productivity through targeted wear resistance The use of CBN as a cutting material in this insert provides significantly improved wear behaviour in demanding turning operations. The WBS10 grade is engineered for hard and heavily abrasive workpieces, which reduces the frequency of tool changes and supports longer uninterrupted machining cycles. This leads to measurable increases in throughput and predictable cycle times. The indexable insert design allows fast repositioning and economical use of the cutting edge, contributing to lower overall machining costs while maintaining process stability. Reliable cutting performance and secure clamping The rhombic 80° geometry delivers an advantageous approach angle that balances cutting forces and edge engagement, improving chip control in intermittent and continuous cuts. With a corner radius of 0.8 mm, the insert offers improved edge strength without sacrificing surface quality. The negative 0° relief geometry enhances clamping security in robust toolholders, which in turn increases dimensional consistency and repeatability during series production. These characteristics support process qualifications where reproducible results are required. Practical application advice and integration into production Integration of this CBN insert into existing workflows should be guided by material-specific parameters: the CBN cutting material excels on hardened steels and certain superalloys, but the exact results depend on workpiece alloy, hardness and cutting conditions. It is recommended to verify the item against the manufacturer’s product matrix and to adjust feeds and speeds for heat-sensitive materials. The combination of process security and extended tool life makes this insert particularly suited to shops aiming to optimise throughput while preserving workpiece quality. For setup recommendations or cutting data, technical consultancy is available through Metav Werkzeuge. Contact Metav Werkzeuge for tailored application support and to secure Walter Tools CBN inserts for hardened turning tasks Technical data Article number: CNGA120408EM-2-WBS10-WALTER Designation: CNGA120408EM-2 WBS10 Product type: Indexable turning insert Manufacturer: Walter Tools Series: Walter CBN / Hartstoff Grade: WBS10 Core technical data Insert size: 12 mm Corner radius: 0.8 mm Thickness code: 04 Relief angle: 0° Tolerance class: G Chipbreaker: 2 Special features CBN cutting material, suitable for hardened steels and wear-intensive tasks Rhombic 80° insert geometry Negative geometry (A) for secure clamping Material designation: Katalogabhängig Note: Check product matrix for material suitability FAQ Which materials is this insert most suitable for? The insert is supplied in a WBS10 CBN grade and is intended primarily for hardened steels and other wear-intensive alloys; check the product matrix for exact workpiece compatibility. What effect does the 0.8 mm corner radius have on machining? A 0.8 mm corner radius provides a balance between edge strength and surface finish, improving durability while helping to achieve consistent workpiece quality. How does the negative 0° relief influence clamping and stability? The 0° relief negative geometry increases contact stability in the toolholder and reduces the risk of insert movement under heavy cutting loads, supporting repeatable dimensions. Is a coating specified for this insert? No coating is specified in the provided data; the cutting performance stems from the CBN material of the WBS10 grade. What should be checked before selecting this insert for a job? Confirm the workpiece material and hardness against the manufacturer matrix and validate cutting parameters for the chosen toolholder and machine to ensure optimal results. Manufacturer / Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen Walter Tools: The Walter AG (brand presentation: Walter Tools) with headquarters in Tübingen is among the world's leading manufacturers of precision tools for metalworking and forms part of the Sandvik Group. Protected trademarks and trade names belong to their respective owners. Mark names and registered trademarks are mentioned for explanatory purposes only. There is no affiliation between our company and the named brands. The offered article is original and factory-new.
CNGA120408SM-MWS WCH10C Wendeplatten - Walter Tools
Achieve consistent, wear-resistant performance through the combination of the WCH10C coated ceramic grade and a precise rhombic 80° geometry; paired with the MWS chipbreaker this insert delivers stable chip control and reliable hard-turning productivity. Order the CNGA120408SM-MWS WCH10C directly via Metav Werkzeuge or consult our application specialists for tailored recommendations. CNGA120408SM-MWS WCH10C — Indexable turning insert for hardened steels (Walter Tools) The CNGA120408SM-MWS WCH10C is an indexable turning insert engineered for hard machining of hardened steels, offering a coated ceramic grade and a geometry optimised for stable, high-speed cutting. *Coated ceramic grade WCH10C *For hardened steels (ISO group H) *Rhombic 80° shape, 0.8 mm corner radius *MWS chipbreaker, negative 0° rake Consistent wear resistance for demanding hard turning The combination of the WCH10C ceramic grade and a coating optimised for thermal stability provides high wear resistance under severe cutting conditions. Designed specifically for machining hardened steels, the grade sustains cutting integrity at elevated temperatures and across long tool paths, which reduces unscheduled tool changes and supports continuous production. The result is greater process predictability and less rework, especially when high surface quality and dimensional stability are required. Geometry that supports stable cuts and accurate profiles A rhombic 80° form with a 0.8 mm corner radius and negative 0° rake promotes secure edge engagement and predictable cutting forces. This geometry helps maintain part tolerances during hard turning operations by balancing edge strength and cutting action; the modest corner radius adds robustness while still allowing good surface finish. For applications where repeatability is crucial, the insert’s dimensional design contributes to consistent results and simplified setup routines. Improved chip control increases process security The integrated MWS chipbreaker is tuned for fragmentation and evacuation when machining high-hardness materials. By encouraging short, controllable chips, the tool reduces the risk of workpiece scratching and tool nose damage, supporting safer automated turning cycles. As part of the Walter CBN / hard-material series, this insert is aligned with the brand’s focus on process stability and reliable surface quality, enabling more predictable cycle times and less intervention during continuous runs. Application focus and productivity advantages Suitable for the ISO H group and indicated for pre-hardened and hardened steel applications, the insert is a practical choice where durability and thermal resistance matter. Using a coated ceramic insert such as this often allows increased cutting speeds compared with conventional carbide grades, shortening machining times and improving throughput. When combined with consistent tool handling and correct cutting data, users can expect longer tool life and a favourable cost-in-use profile in hard turning scenarios. For application-specific advice on Walter Tools inserts and to evaluate the CNGA120408SM-MWS WCH10C for a particular hardened-steel task, contact Metav Werkzeuge for direct consultation at info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: CNGA120408SM-MWS-WCH10C-WALTER Label: Drehwendeschneidplatte CNGA120408SM-MWS WCH10C Walter Tools Manufacturer: Walter Tools Product type: Indexable turning insert Series: Walter CBN / hard-material Grade: WCH10C ISO designation: CNGA120408SM-MWS WCH10C Facts Free rake angle: 0° (negative) Corner radius: 0.8 mm Plate shape: Rhombus 80° Plate size: 12 Chipbreaker: MWS Plate thickness: 04 Tolerance class: G Execution: A Special features Coating: Coated ceramic grade WCH10C Material suitability: Hardened steel (ISO group H) Series purpose: Hard machining applications Chip control: MWS chipbreaker for short chips Benefit focus: High cutting speed capability and thermal stability FAQ What materials is this insert designed for? The CNGA120408SM-MWS WCH10C is designed primarily for hardened steels (ISO group H) and for hard-turning applications where a wear-resistant ceramic grade is required. How does the MWS chipbreaker affect machining? The MWS chipbreaker on the CNGA120408SM-MWS WCH10C promotes short, controlled chips, improving process security and reducing the likelihood of surface damage during high-hardness turning. What advantages does the rhombic 80° geometry provide? The rhombic 80° form with a 0.8 mm corner radius gives a balance of edge strength and cutting performance, allowing secure engagement and consistent dimensional accuracy in hard-turning tasks using this Walter Tools insert. Can this insert be used for pre-hardened steel? Yes, the CNGA120408SM-MWS WCH10C is suitable for pre-hardened steel as well as fully hardened materials, offering thermal stability and wear resistance needed for these applications. How does the WCH10C grade compare for high-speed operations? The coated ceramic WCH10C is engineered for high cutting speeds and temperature resistance, enabling faster cycle times in many hard-machining scenarios compared with conventional carbide grades. Manufacturer: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany Protected trademarks and trade names are the property of their respective owners. Brand names and protected designations are mentioned for explanatory purposes only. There is no connection between our company and the named brands. The offered item is original, brand-new goods from the manufacturer.
CNGA120408SM-S WCH10C Wendeplatten - Walter Tools
Take advantage of a high-speed, temperature-resistant cutting solution for hard turning: the combination of the WCH10C coated ceramic grade, stable 0° negative rake geometry and an 80° rhombic form delivers consistent edge life and reliable chip control for hardened steels; order via Metav Werkzeuge or consult the technical team for application advice. CNGA120408SM-S WCH10C indexable turning insert — Walter Tools, coated ceramic for hard turning CNGA120408SM-S WCH10C is a rhombic 80° indexable turning insert engineered for high-speed and temperature-resistant machining of hardened and pre-hardened steels Coated ceramic grade WCH10C Engineered for hardened steels (ISO H) Rhombic 80° with 0.8 mm nose radius High-speed, temperature-resistant cutting for hard turning The WCH10C grade is a coated ceramic cutting material formulated for abrasive, high-temperature environments encountered during hard machining. Its chemistry and coating strategy support sustained cutting at elevated speeds, which reduces cycle times while maintaining surface integrity. The 0° negative rake geometry provides a sturdy cutting edge that helps resist chipping under heavy radial loads; this results in predictable tool life and fewer unplanned insert changes during serial production. Stable chip control and repeatable surface quality The insert’s S chipbreaker combined with a 0.8 mm nose radius produces controlled chip formation and consistent cutting forces, benefitting process stability and surface finish. In practice, the defined chip management reduces the need for intermittent chip clearing and supports continuous operation on hardened workpieces. This reliability translates into lower process variability and improved throughput for centres machining components from hardened steels and pre-hardened stock. Robust geometry that fits standard CNGA toolholders Designed in the CNGA family, the insert’s rhombic 80° shape and designation size 12 with thickness 04 ensure compatibility with established CNGA toolholder systems. The form factor offers two usable cutting edges per indexed position, enabling cost-effective utilisation of the insert body. Clear geometric definition simplifies inventory management and tool-change procedures, supporting leaner toolroom workflows without sacrificing machining capability. Application scope and practical recommendations Part of the Walter CBN / Hartstoff series and marked for ISO group H (hardened steels), this insert is best applied to finishing and semi-finishing passes on hard-turned components where temperature resistance and edge stability are essential. The coated ceramic grade is optimised for elevated cutting speeds; toolpaths and feeds should be selected in accordance with machine rigidity and workpiece clamping to exploit the material benefits fully. For detailed cutting data and process matching, consult the Metav Werkzeuge specialists. Contact Metav Werkzeuge for tailored application support on Walter Tools CNGA120408SM-S WCH10C, and request machining recommendations matched to the workpiece material and machine setup Technical data Article number: CNGA120408SM-S-WCH10C-WALTER Designation: CNGA120408SM-S WCH10C Product type: indexable turning insert (Drehwendeschneidplatte) Manufacturer: Walter Tools Series: Walter CBN / Hartstoff Facts Grade: WCH10C Relief angle: 0° (negative) Corner radius: 0.8 mm Plate form: Rhombus 80° Plate size: 12 Plate thickness: 04 Chipbreaker: S Tolerance class: G Special features Coated ceramic cutting material Target material group: H (hardened steels) Suitable for pre-hardened steel applications Designed for high cutting speeds and temperature resistance FAQ What materials is this insert designed to machine? The CNGA120408SM-S WCH10C insert is specified for ISO group H, meaning it is designed for hardened steels and is also suitable for pre-hardened steel applications. How does the 0° negative rake affect performance? A 0° negative rake offers a robust cutting edge that resists chipping under high radial loads, improving edge life and stability during hard turning with the WCH10C grade. What does the S chipbreaker provide? The S chipbreaker promotes controlled chip formation and evacuation, supporting continuous machining and consistent surface quality on hard materials. Is this insert compatible with standard CNGA holders? The CNGA geometry and the designation size 12 correspond to common CNGA toolholder systems, enabling straightforward mounting and indexing in standard holders. Where is this insert typically used in the machining process? It is typically used for finishing and semi-finishing of hardened and pre-hardened components, where temperature resistance and a stable cutting edge are required. Manufacturer / Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen Protected trademarks and trade names are the property of their respective owners. Brand names and protected trade names are mentioned for explanatory purposes only. There is no affiliation between our company and the mentioned brands. The offered item is original, brand-new goods from the manufacturer. The brand in this listing is Walter Tools.
CNGA120408T02020 WCK10 WCK10 Wendeplatten - Walter Tools
Take advantage of the combination of WCK10 cutting ceramic, Rhombic 80° geometry and a 0.8 mm nose radius for higher throughput and consistent surface quality; order the insert via Metav Werkzeuge or consult the Metav team for matching tool holders and machining parameters. CNGA120408T02020 WCK10 indexable turning insert — Rhombic 80°, 0.8 mm nose radius — Walter Tools The CNGA120408T02020 WCK10 is a negative‑geometry indexable turning insert designed for high cutting speeds and temperature‑resistant machining in compatible ISO workpiece groups WCK10 cutting ceramic for high cutting speeds Rhombic 80° insert geometry 0.8 mm nose radius for improved surface quality 0° negative clearance for secure engagement Higher productivity thanks to a ceramic grade tuned for speed The core advantage of the WCK10 grade is its suitability for high cutting speeds and temperature‑resistant machining, characteristics that translate directly into shorter cycle times where the workpiece material and machining strategy permit. Ceramic grades are engineered to retain hardness at elevated temperatures, enabling aggressive metal removal rates without rapid flank wear. For practical planning, the product matrix should be consulted to confirm compatibility with the specific ISO material group and to define cutting data that balance life and productivity. Geometry and relief that stabilise cutting and finish The Rhombic 80° shape combined with 0° negative relief provides a robust cutting edge that resists deflection under load while offering repeatable seating in negative‑style tool holders. The 0.8 mm nose radius supports a fine surface finish without sacrificing edge strength, making the insert suitable for mixed finishing and light‑turning passes. The specified tolerance class G ensures consistent seat fit and repeatability across batches, thereby reducing setup variation and scrap risk during serial production. Designed for integration into standard turning toolholders Dimension codes indicate an insert size of 12 with a thickness code of 04 and a rhombic form that fits common negative‑style clamping systems. The open series designation in the Walter portfolio allows straightforward replacement and pairing with established holders used in CNC lathes and multi‑spindle machines. When adapting to a particular turning cell, mechanical seating, clamp type and expected cutting forces should be verified so that the CNGA120408T02020 performs as intended and chip control remains stable. Practical considerations for process reliability The Walter Schneidstoffsorte series emphasises stable chip formation and consistent cutting behaviour; nevertheless, machining success depends on matching the insert to the workpiece, coolant strategy and machine rigidity. That is why the product matrix is an essential planning tool: it links ISO material groups to recommended grades and cutting ranges. For applications where thermal resistance and high speed are priorities, this insert offers a pragmatic route to improved cycle times while maintaining reproducible results and predictable tool change intervals. For applications requiring elevated cutting speeds and temperature resistance, specify the Walter Tools CNGA120408T02020 WCK10 through Metav Werkzeuge — contact info@metav-werkzeuge.com or call +49 2822 7131930 for tailored advice and holder recommendations Technical Data Article number: CNGA120408T02020-WCK10-WALTER Type: Indexable turning insert ISO designation: CNGA120408T02020 WCK10 Brand: Walter Tools Core technical data Insert size: 12 Thickness code: 04 Nose radius: 0.8 mm Clearance angle: 0° (negative) Insert shape: Rhombic 80° Tolerance class: G Materials & features Grade: WCK10 (cutting ceramic) Series: Walter Schneidstoffsorte - Serie offen Suitability: check product matrix for ISO workpiece groups Application note: indicated for high cutting speeds and temperature‑resistant machining FAQ What materials is this insert suitable for? Suitability depends on the ISO workpiece group; the WCK10 ceramic grade is indicated for high cutting speeds and temperature‑resistant machining, so consult the product matrix for exact material matches when selecting the insert. How does the 0° negative clearance influence performance? The negative clearance provides a secure cutting engagement and improved edge stability under load, which helps the CNGA120408T02020 WCK10 maintain consistent cutting geometry in heavy or interrupted cuts. Can the 0.8 mm nose radius be used for finishing? Yes, the 0.8 mm radius offers a balance between edge strength and surface quality, making it suitable for fine finishing operations within recommended cutting parameters. Manufacturer: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany Walter AG (marketed as Walter Tools) is a leading manufacturer of precision cutting tools and forms part of the Sandvik group. Protected trademarks and product names belong to their respective owners. Mark names and registered trademarks are used solely for explanation; there is no affiliation between Metav Werkzeuge and the trademark owners.
CNGA120408TM-2 WBH10 Wendeplatten - Walter Tools
Take advantage of the combination of high wear resistance, precise 80° geometry and reliable process stability to boost throughput in hard turning operations; order the CNGA120408TM-2 WBH10 directly via Metav Werkzeuge or request application advice from our consultants. CNGA120408TM-2 WBH10 indexable turning insert, CBN grade for hard turning — Walter Tools CNGA120408TM-2 WBH10 is an indexable turning insert engineered for hard machining tasks and optimised for consistent performance in hardened steels and similar high-wear materials CBN grade WBH10 for hard machining Rhombic 80° geometry for versatile turning Corner radius 0.8 mm for predictable edge life 0° clearance (negative) for robust cutting action High-process stability and long tool life for hard turning The CBN-based WBH10 grade is designed specifically for the demands of hardened steels, delivering exceptional wear resistance and stable chip behaviour in high-contact applications. As a CBN insert, it provides a significantly harder cutting edge than conventional carbide, which reduces flank wear and helps maintain dimensional accuracy over longer tool life. This reliability translates into fewer tool changes and more predictable production runs, supporting higher overall equipment effectiveness in hard-turning processes. Geometry that improves cutting control and surface quality The Rhombic 80° geometry combined with a 0.8 mm corner radius offers a balance between accessibility and edge strength, allowing for versatile turning strategies without compromising stability. The negative 0° clearance contributes to a more robust cutting edge, making the insert suitable for heavy interrupted cuts and final finishing of hardened components. Together these features yield improved surface uniformity and repeatable tolerances, particularly where controlled chip flow and edge security are essential. Application advantages and practical notes for production As part of the Walter CBN / Hartstoff series, this indexable insert is intended for hard and pre-hardened workpieces and aligns with ISO classifications for hardened materials (group H). The design supports consistent process parameters and reduced variance in batch production, which is particularly valuable for aerospace, tooling and die, and other high-precision sectors. For complex specifications or unusual alloys, consult our technical team for recommended cutting data; Metav Werkzeuge can provide tailored recommendations and delivery options to match production requirements. For robust hard-turning performance with Walter Tools CBN technology, contact Metav Werkzeuge for application support and stock availability at info@metav-werkzeuge.com or call +49 2822 7131930 — our consultants will advise on deployment and cutting data Technical data Article number: CNGA120408TM-2-WBH10-WALTER Designation: CNGA120408TM-2 WBH10 Manufacturer: Walter Tools Facts Size: 12 Corner radius: 0.8 mm Thickness: 04 Chipbreaker count: 2 Clearance angle: 0° (negative) Execution: A Tolerance class: G Special features CBN grade WBH10 Series: Walter CBN / Hartstoff Geometry: Rhombus 80° Application: Hard machining; suitable for hardened steels and pre-hardened steels Stable chip formation and optimised wear behaviour FAQ What materials is this insert suitable for? The CNGA120408TM-2 WBH10 insert is designed primarily for hardened steels and is also suitable for pre-hardened steel applications under the Walter CBN / Hartstoff series. How does the WBH10 grade differ from carbide inserts? WBH10 is a CBN cutting material offering superior hardness and wear resistance compared with carbide, which results in longer edge life and improved dimensional stability on hard workpieces. Which operations benefit most from this insert? This insert is especially effective in hard turning operations that demand robust edge security and consistent surface finish, including finishing and heavy interrupted cuts on hardened components. Is the geometry suitable for tight‑access turning? The Rhombic 80° form provides versatile access combined with a strong edge; the 0.8 mm corner radius helps maintain edge life while allowing precise contouring. Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen The Walter AG (marketed as Walter Tools) is one of the world’s leading manufacturers of precision cutting tools for metalworking and is part of the Sandvik Group. Protected trademarks and trade names remain the property of their respective owners. Brand names and trademarks are mentioned for explanation only; there is no affiliation between our company and the listed brands.
CNGA120408TM-2 WBH10C Wendeplatten - Walter Tools
Take advantage of the combination of coated CBN performance and a robust 0.8 mm corner radius for reliable hard-turning operations; order directly via Metav Werkzeuge or consult our specialists for application-specific advice. CNGA120408TM-2 WBH10C — Turning indexable insert, coated CBN for hardened steels, Walter Tools the CNGA120408TM-2 WBH10C is a rhombic 80° turning insert designed for demanding hard‑machining tasks on hardened steels CBN-coated grade WBH10C for hard materials Rhombic 80° shape for versatile turning Negative 0° rake for stable cutting 0.8 mm corner radius for robust edge Maximise process reliability in hard turning The coated CBN cutting material (WBH10C) is engineered for wear resistance and a steady cutting edge when machining hardened steels (ISO 513 group H). This makes the insert particularly suitable for applications where tool life and repeatable performance are critical. The use of cubic boron nitride as a cutting material reduces flank wear under high thermal and mechanical loads, resulting in more consistent component tolerances and fewer tool changes during production. Geometry that balances strength and surface quality The rhombic 80° insert geometry combined with a 0.8 mm corner radius and a negative 0° free angle delivers a robust cutting edge capable of withstanding interrupted cuts and variable workpiece conditions. The geometry supports stable chip formation through the specified chipbreaker (#2), which helps maintain predictable chip control and reduces the risk of built-up edge. For shops processing pre‑hardened and hardened components, this combination provides an efficient compromise between strength and finish quality. Intended applications and selection guidance Designed for hard‑machining tasks such as finishing and semi‑finishing of hardened steels and similar high‑wear materials, the insert is available in the Walter CBN / hard material series and complies with tolerance class G. The plate dimensions (designation CNGA120408TM‑2) and the rhombic form allow straightforward indexing and reuse of cutting edges, supporting productive small‑batch and series production alike. For material groups outside hardened steels, consult the technical documentation to confirm suitability. Contact Metav Werkzeuge for tailored advice on selecting Walter Tools inserts and specification support; technical consultants are available by email or phone. Technical data SKU: CNGA120408TM-2-WBH10C-WALTER Product type: Drehwendeschneidplatte (turning indexable insert) Series: Walter CBN / Hartstoff Grade: WBH10C ISO designation: CNGA120408TM-2 WBH10C Facts Insert shape: Rhombus 80° Insert size: 12 Thickness: 04 Corner radius: 0.8 mm Free angle: 0° (negative) Chipbreaker: 2 Tolerance class: G Execution: A Special features Coated CBN cutting material Suitable for hardened steels (ISO 513 group H) Stable chip formation and wear resistance Series designed for hard machining FAQ What materials is this insert intended for? The CNGA120408TM-2 WBH10C insert is intended primarily for hardened steels (ISO 513 group H) and for applications requiring high wear resistance. How does the WBH10C grade benefit hard‑turning processes? The WBH10C coated CBN grade offers high resistance to flank wear and thermal degradation, which leads to longer tool life and more consistent component tolerances during hard machining. What is the significance of the rhombic 80° shape and 0.8 mm radius? The rhombic 80° geometry enables versatile turning positions and easy indexing, while the 0.8 mm corner radius strengthens the cutting edge for interrupted cuts and improves edge life. Is the insert suitable for pre‑hardened steels? Yes; the insert is indicated for pre‑hardened and hardened steel applications and is part of a series optimised for such materials. Which series does this insert belong to and what does that imply? This turning insert belongs to the Walter CBN / hard material series, implying a focus on productive hard machining, stable chip formation and reliable cutting performance. Manufacturer / Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers. Hersteller: Walter Tools; Die Walter AG (Markenauftritt: Walter Tools) mit Hauptsitz in Tübingen gehört zu den weltweit führenden Herstellern von Präzisionswerkzeugen für die Metallbearbeitung und ist Teil des schwedischen Sandvik-Konzerns. Sind Sie sich nicht sicher, ob dieses Werkzeug Ihre Anforderungen erfüllt? Oder benötigen Sie ergänzende technische Daten? Kein Problem – wir stehen Ihnen gerne zur Verfügung. 📧 eMail: info@metav-werkzeuge.com ☎️ Telefon: +49 2822 7131930
CNGA120408TM-2 WBH20 WBH20 Wendeplatten - Walter Tools
Take advantage of the combination of CBN wear resistance, a negative 0° rake and the stable Rhombus 80° geometry for steady hard-turning results; order the CNGA120408TM-2 WBH20 directly via Metav Werkzeuge or ask our consultants if needed. CNGA120408TM-2 WBH20 indexable turning insert — CBN grade for hardened steels (Walter Tools) The CNGA120408TM-2 WBH20 is a negative‑rake, rhombic 80° CBN insert designed for precise hard‑turning of hardened steels and related high‑wear materials. CBN-grade WBH20 for hard turning Negative 0° rake for stable cutting Rhombic 80° geometry for versatile indexing 0.8 mm corner radius for defined contours Consistent performance on hardened components The combination of CBN as the cutting material and the WBH20 grade gives reliably low wear rates during hard‑turning operations on hardened steels. CBN (cubic boron nitride) is specifically engineered to withstand high contact temperatures and abrasive wear; this means fewer tool changes and more predictable part tolerances in serial production. With a negative 0° rake, the insert promotes a robust cutting edge that resists chipping under heavy radial loads, enhancing process stability in demanding turning cycles. Efficiency through geometry and chip control The Rhombus 80° form and the integrated chipbreaker 2 deliver predictable chip formation for typical hard‑machining scenarios. Controlled chips reduce interruptions and protect the workpiece surface, so cycle times fall and downstream grinding or finishing steps are simplified. The 0.8 mm corner radius supports defined contouring without compromising edge strength, making the insert suitable for finishing where consistent surface quality and dimensional accuracy are required. Application guidance and workplace benefits This insert is optimised for materials classified under group H — hardened steels — and is intended for reliable hard‑machining tasks such as finishing and semi‑finishing of quenched components. The robust grade and geometry yield longer in‑process life and improved process security on high‑hardness work, which helps to lower overall machining costs. For toolholders, clamping and coolant strategies, the insert matches standard CNGA toolholder interfaces; adapt cutting data to part geometry and machine rigidity for best results. For further machining parameters or compatibility checks, Metav Werkzeuge provides technical guidance and cutting data. For machining hardened steels with Walter Tools’ WBH20 CBN grade, contact Metav Werkzeuge for tailored tooling recommendations and ordering support. Technical data SKU: CNGA120408TM-2-WBH20-WALTER Designation: CNGA120408TM-2 WBH20 Series: Walter CBN / Hartstoff Plate form: Rhombus 80° Tolerance class: G Core measurements Inscribed circle: 12 mm Thickness: 04 Corner radius: 0.8 mm Clearance angle: 0° (negative) Chipbreaker: 2 Special features Grade WBH20 (CBN cutting material) Designed for hardened steels and pre‑hardened steel Stable negative rake for secure cutting edge Optimised chip control for hard machining Suitable for finishing and hard turning applications Walter Tools brand quality FAQ What materials is this insert suitable for? The CNGA120408TM-2 WBH20 is designed primarily for hardened steels (ISO group H); the WBH20 CBN grade gives the wear resistance needed for hard‑turning and related applications. How does the CBN grade affect tool life? CBN in the WBH20 grade resists abrasive wear and high temperatures, which extends tool life and maintains dimensional stability during prolonged cutting of hardened components. Which geometry benefits are provided by the Rhombus 80° form? The Rhombus 80° form offers flexible indexing positions and a robust cutting edge, improving stability across a range of turning operations and enabling repeatable performance. Is the insert suitable for finishing operations? Yes. The 0.8 mm corner radius and WBH20 grade support controlled cutting and consistent surface quality, making the insert appropriate for finishing and semi‑finishing of hard materials. Does the negative 0° rake require special toolholders or machine settings? Negative rake inserts are typically run with standard CNGA toolholders; however, optimising machine rigidity and cutting parameters is recommended to make the most of the stable cutting edge. Manufacturer / Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen The Walter AG (brand appearance: Walter Tools) is one of the world’s leading manufacturers of precision tools for metalworking and forms part of the Sandvik Group. Protected trademarks and trade names are the property of their respective owners and are mentioned solely for explanatory purposes. There is no connection between our company and the named brands beyond the sale of original, factory‑new products of the manufacturer.
CNGA120408TM-2 WBH20C WBH20C Wendeplatten - Walter Tools
The combination of a CBN cutting grade and a robust rhombic geometry delivers stable wear resistance and consistent surface quality on hardened steels; the 0° negative rake and 0.8 mm corner radius support secure cutting and predictable chip control. Order the CNGA120408TM-2 WBH20C via Metav Werkzeuge or consult the application specialists for machining advice. CNGA120408TM-2 WBH20C indexable insert – CBN grade, Rhombic 80° (Walter Tools) The CNGA120408TM-2 WBH20C is an indexable insert intended for hard turning and precision finishing of hardened steels, combining a coated CBN cutting grade with a rhombic 80° geometry for reliable edge stability. CBN grade WBH20C for hard materials Rhombic 80° geometry for secure clamping 0° negative rake for consistent chip control 0.8 mm corner radius for reliable edge strength Higher throughput thanks to a wear-resistant CBN grade The WBH20C is a coated CBN cutting grade developed for demanding hard‑machining tasks. Its high abrasion resistance enables longer tool life when turning hardened steels (ISO group H), reducing tool changes and downtime. As an indexable insert, the CNGA120408TM-2 WBH20C provides consistent wear behaviour across indexed corners, which translates into predictable component tolerances and lower per‑part machining costs. The combination of a wear‑resistant grade and optimised chipbreaking contributes directly to higher spindle utilisation and improved process efficiency. Consistent surface finish and process security from adapted geometry The Rhombic 80° shape with a 0° negative rake stabilises the cutting edge under heavy contact conditions, while the 0.8 mm radius increases edge strength to withstand interrupted cuts common in hard turning. These geometric choices ensure reliable chip control and reduced vibration, delivering repeatable surface finish results without excessive feed reductions. Clear geometry‑driven benefits include easier programme validation, fewer scrap incidents and improved confidence in batch production runs, supporting overall process security in the workshop. Practical selection, integration and application benefits The insert series is designated for hard materials and supports operations on hardened steels and pre‑hardened components. Its chipbreaker and coated CBN grade are tuned for stable chip formation in high abrasive conditions, which simplifies coolant and parameter selection. For seamless integration, indexable inserts with this geometry suit toolholders designed for CNGA‑style rhombic cutters and benefit from correct clamping torque and stable seat alignment. For tailored cutting data and optimisation in specific alloys or hardening levels, Metav Werkzeuge application engineers are available to recommend feeds, speeds and toolholder pairings to maximise productivity while maintaining component quality. For machining hardened steels with reproducible results, request an application consultation from Metav Werkzeuge—contact via info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability and supply of the Walter Tools CNGA120408TM-2 WBH20C. Technical Data Article number: CNGA120408TM-2-WBH20C-WALTER Designation: CNGA120408TM-2 WBH20C Series: Walter CBN / Hartstoff Grade: WBH20C Manufacturer: Walter Tools Core Data Insert size: 12 Thickness: 04 Corner radius: 0.8 Relief angle: 0° (negative) Tolerance class: G Materials & Applications Coated CBN cutting grade Suitable for hardened steels (ISO group H) Applicable to pre‑hardened steel operations Rhombic 80° insert form Chipbreaker: 2 Execution: A FAQ What materials is this insert intended for? The WBH20C cutting grade is specifically for hardened steels; the CNGA120408TM-2 WBH20C performs best in hard‑turning and finish operations on ISO group H materials. Can the insert be used for interrupted cuts? Yes, the combination of rhombic geometry and a 0.8 mm corner radius provides increased edge strength, making the insert suitable for interrupted hard‑turning scenarios. Which toolholder style is compatible with this insert? The CNGA120408TM-2 WBH20C fits holders designed for CNGA‑form inserts with a rhombic 80° seating; ensure correct clamping and seat condition for consistent performance. How does the CBN grade affect tool life and surface quality? The CBN composition of WBH20C offers high abrasion resistance, extending tool life and delivering stable surface finish results under the high contact pressures of hard machining. Are there recommended operating conditions for best results? For optimal outcomes, pair the insert with a rigid holder, set feeds and speeds according to material hardness, and consult Metav Werkzeuge application data for alloy‑specific parameters. Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen Walter AG (brand presentation: Walter Tools), headquartered in Tübingen, is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik Group. Protected trademarks and product names are the property of their respective owners and are used here for explanation only. No affiliation between our company and the named brands is implied. The offered item is original, factory‑new goods of the manufacturer.
CNGA120408TM-2 WBH30 A Wendeplatten - Walter Tools
Benefit from the combination of CBN hardness, a 0.8 mm corner radius and a robust rhombic geometry for consistent performance in hard-turning tasks; order the insert directly via Metav Werkzeuge or request advice from our consultants for process integration. CNGA120408TM-2 WBH30 indexable turning insert – CBN grade for hardened steels by Walter Tools CNGA120408TM-2 WBH30 is a CBN turning insert designed for hard and pre-hardened steel machining, offering durable cutting edges for high-wear applications CBN grade WBH30 for hard machining Rhombic 80° shape for versatile cutting Negative 0° clearance for heavy cuts 0.8 mm corner radius for stable edge life High-wear performance for hardened materials The CBN-based WBH30 grade delivers excellent wear resistance for sustained performance when machining hardened steels and other high-hardness workpieces. Designed for applications where tool life is critical, the insert’s composition reduces flank wear and maintains cutting-edge geometry under elevated contact temperatures. This results in fewer tool changes, reduced downtime and a more predictable production rhythm for hard turning operations. Geometry engineered for stability and process reliability The Rhombus 80° form combined with a 0° negative clearance offers robustness in interrupted cuts and heavy engagement conditions. The 0.8 mm corner radius ensures a stable cutting edge that withstands high radial loads, while the integrated chipbreaker 2 supports controlled chip formation in demanding passes. Together, these features promote consistent chip flow and surface finish while lowering the risk of edge chipping during tough machining cycles. Productivity gains through predictable tool life By using a CBN insert from the Walter CBN / Hartstoff series, process planners can expect more consistent component quality and longer machining campaigns between indexings. The insert’s stable wear characteristics support tighter tolerances and repeatable results in series production, translating into lower unit costs and improved throughput for hard-material components. The combination of material, geometry and chip control targets both performance and economy. Practical application guidance for integration Best results are achieved with a rigid toolholder and secure workpiece clamping to exploit the insert’s resistance to high cutting forces. The insert suits turning operations on hardened steels and pre-hardened workpieces where CBN is preferred over conventional carbide solutions. When programming cutting cycles, prioritise stable feeds and controlled depths of cut to maintain edge integrity; this approach leverages the insert’s wear resistance while optimising surface quality and dimensional stability. For application support and to specify the correct Walter Tools CBN insert for a given hard-turning task, contact Metav Werkzeuge – experts are available to advise on selection and process implementation (info@metav-werkzeuge.com • +49 2822 7131930) Technical data Article number: CNGA120408TM-2-WBH30-WALTER SKU: CNGA120408TM-2-WBH30-WALTER Designation: CNGA120408TM-2 WBH30 Facts Corner radius: 0.8 mm Plate size: 12 Plate thickness: 04 Clearance angle: 0° (negative) Plate form: Rhombus 80° Chipbreaker: 2 Tolerance class: G Special features Series: Walter CBN / Hartstoff Grade: WBH30 (CBN cutting material) Material suitability: hardened steels, pre-hardened steel Application: hard turning and high-wear machining tasks Execution: A FAQ What materials is this insert intended for? The CNGA120408TM-2 WBH30 insert is intended primarily for hardened steels and pre-hardened steel applications, using the CBN WBH30 grade for high wear resistance. How does the rhombic 80° shape affect cutting performance? The Rhombus 80° geometry provides a versatile cutting edge orientation that balances strength and accessibility, making the insert suitable for a variety of turning operations where robustness and edge life are required. Why is a 0° negative clearance useful? A 0° negative clearance increases edge strength and stability under heavy radial loads, which helps to maintain cutting-edge integrity during tough or interrupted cuts. Can this insert improve process repeatability? Yes; the CBN composition and the stability of the insert’s geometry help to deliver consistent wear behaviour, supporting repeatable tolerances and surface finishes across production batches. Is the corner radius suitable for finishing or roughing? The 0.8 mm corner radius is a compromise between durability and finish quality—providing enhanced edge strength for roughing while still permitting acceptable surface finishes in many hard-turning applications. Manufacturer: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanation only. There is no affiliation between Metav Werkzeuge and the trademark owners; the offered article is an original, factory-new product from the indicated manufacturer.
CNGA120408TM-4 WBH20C WBH20C Wendeplatten - Walter Tools
Take advantage of the CBN-grade wear resistance, the rhombic 80° geometry and the 0.8 mm corner radius to ensure stable hard-turning performance and predictable tool life; order the insert directly via Metav Werkzeuge or contact the consultants for application advice. CNGA120408TM-4 WBH20C turning insert — Walter Tools, CBN grade for hard turning (rhombic 80°, 0.8 mm radius) CNGA120408TM-4 WBH20C is a rhombic turning insert designed for hard machining applications, combining a coated CBN grade with a negative relief angle for secure cutting in hardened steels. CBN grade WBH20C for hard turning Rhombic 80° insert geometry Corner radius 0.8 mm Negative relief angle 0° (stable cutting) Predictable wear resistance for hardened steels The coated CBN grade WBH20C is formulated for high-wear operations, making it particularly suitable for machining hardened steels and similar hard materials. The combination of a CBN cutting edge and a controlled chip former delivers high resistance to abrasive wear, which reduces the frequency of insert changes and supports continuous production. This results in lower downtime and more reliable cycle times in series turning operations, providing a clear rational advantage for process planners and production managers. Geometry engineered for consistent cutting behaviour The rhombic 80° shape with a 0.8 mm corner radius and a 0° negative relief angle offers a balance between edge strength and cutting stability. The geometry reduces impact on the cutting edge during interrupted cuts while maintaining a predictable cutting direction and surface finish. For operators, this means improved repeatability in diameters and profiles and fewer adjustments between components — a practical benefit that supports efficient programming and reduces scrap rates. Process security and productivity through chip control Equipped with a defined chipbreaker (code 4) and a tolerance classification of G, the insert supports controlled chip formation and consistent seat fitment in toolholders. The chip control features improve swarf evacuation and protect the cutting edge from re-cutting, which enhances tool life and surface integrity. These technical characteristics translate into measurable productivity gains, especially in medium- to high-volume production where stable output and low scrap are critical. Application scenarios and service guidance This insert is intended primarily for hard turning tasks, including finishing and semi-finishing of hardened steels and pre-hardened steels where a wear-resistant CBN edge is required. The robust design supports use in automated lathes and CNC turning centres under stable clamping conditions. For support on selection, toolholder pairing or recommended cutting parameters, Metav Werkzeuge’s technical advisors can provide targeted recommendations to match the machining strategy and maximise process efficiency. Contact Metav Werkzeuge for availability of Walter Tools CBN inserts and expert advice on integrating the CNGA120408TM-4 WBH20C into production; email info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: CNGA120408TM-4-WBH20C-WALTER ISO designation: CNGA120408TM-4 WBH20C Series: Walter CBN / Hartstoff Data Size: 12 Thickness code: 04 Corner radius: 0.8 mm Relief angle: 0° (negative) Chipbreaker: 4 Tolerance class: G Special features Coated CBN grade WBH20C For hardened steels (H) Rhombic insert 80° Series: Walter CBN / Hartstoff FAQ What materials is this insert suitable for? The CNGA120408TM-4 WBH20C insert is specified for hardened steels and pre-hardened steel applications; its CBN grade is optimised for high-wear, hard machining tasks. Can the insert be used for finishing and semi-finishing? Yes — the combination of the rhombic 80° geometry and the 0.8 mm corner radius supports both finishing and semi-finishing passes with controlled edge strength. What does the chipbreaker code 4 indicate? Chipbreaker code 4 denotes a chip control geometry designed to produce short, manageable chips under the recommended cutting conditions, improving process security. Is the negative relief angle significant for toolholders? The 0° negative relief angle increases edge support and requires compatible toolholder clamping; correct seating according to the holder manufacturer’s instructions ensures repeatable performance. Where can one get cutting data and application advice? Metav Werkzeuge provides application guidance for the Walter Tools CNGA120408TM-4 WBH20C insert; their consultants can advise on cutting speeds, feeds and holder selection for specific setups. Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen Protected trademarks and trade names are the property of their respective owners. Brand names and protected trademarks are mentioned for explanation only. There is no connection between our company and the named brands. The item offered is an original, factory-new product of Walter Tools.
CNGA120408TM-M2 WBH10 Wendeplatten - Walter Tools
High-performance CBN grade and rhombic 80° geometry provide stable edge life and consistent chip formation under hard-turning conditions; combined with a negative 0° rake and a 0.8 mm corner radius, this insert is engineered for reliable machining of hardened steels. Order the insert directly via Metav Werkzeuge or ask our consultants for application support. CNGA120408TM-M2 WBH10 – indexable turning insert (CBN) for hardened steels, Walter Tools CNGA120408TM-M2 WBH10 is an indexable turning insert designed for hard turning and finish operations in hardened steels, offering high wear resistance and predictable tool life. CBN grade WBH10 for hard turning Rhombus 80° insert geometry Negative 0° rake for stable cutting 0.8 mm corner radius for edge strength Consistent performance when machining hardened materials The CBN-based grade WBH10 is formulated for the demands of hardened steels and delivers superior wear resistance and edge stability compared with conventional carbide grades. CBN (cubic boron nitride) is a superabrasive that remains dimensionally stable under elevated temperatures, which reduces flank wear and extends cutting intervals. For production environments where tool life and repeatability affect throughput, this insert gives a measurable improvement in process reliability and reduces the frequency of tool changes. Precision geometry that improves chip control and surface integrity The Rhombus 80° geometry combined with the M2 chipbreaker and a negative 0° rake provides a balanced cutting action that supports secure chip formation and lowers the risk of built-up edge. A 0.8 mm corner radius increases edge robustness, helping to maintain consistent surface finish across interrupted or unstable cuts. These geometry choices enable predictable engagement with the workpiece, which in turn supports longer intervals between inspections and fewer unplanned stoppages. Integration into machining processes and recommended applications Designed for the Walter CBN / Hartstoff series, this insert is intended primarily for hard turning tasks and is also suitable for pre-hardened steel applications where high wear resistance is required. The insert’s tolerance class G and execution A ensure interchangeability in standard toolholders configured for CNGA-style plates. For process setup, select appropriate cutting parameters consistent with CBN tooling and the rigidity of the machine; the result is reduced tool wear and a more stable machining process that supports consistent part quality. For specific machining recommendations, consult Metav Werkzeuge’s technical advisers. For demanding hard-turning requirements with Walter Tools’ WBH10 CBN grade, contact Metav Werkzeuge for tailored selection and delivery at info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data SKU: CNGA120408TM-M2-WBH10-WALTER ISO designation: CNGA120408TM-M2 WBH10 Series: Walter CBN / Hartstoff Grade: WBH10 Manufacturer: Walter Tools Facts Size: 12 mm Thickness code: 04 Corner radius: 0.8 mm Rake angle: 0° (negative) Tolerance class: G Special features Geometry: Rhombus 80° Chipbreaker: M2 Suitable for: Hardened steels (H) Suitable for: Pre-hardened steel Execution: A FAQ Which materials are suitable for this insert? The CNGA120408TM-M2 WBH10 insert is specified for hardened steels (ISO group H) and is also applicable to pre-hardened steel tasks where CBN performance is required. What is the main advantage of the WBH10 grade? WBH10 is a CBN-based grade that offers high wear resistance and stable cutting behaviour in hard-turning applications, extending tool life compared with conventional grades. How does the Rhombus 80° geometry affect machining? The Rhombus 80° form provides a versatile cutting edge and favourable approach angles for turning, supporting secure chip formation and good surface integrity in finishing passes. Is the insert suitable for interrupted cuts? The larger 0.8 mm corner radius and negative rake create a robust cutting edge that can withstand the mechanical shocks of interrupted cuts better than smaller radii. What toolholder type is required for this insert? This CNGA-style insert fits standard indexable turning toolholders designed for CNGA plates; ensure holders are rated for CBN tooling and the required clamping torque. Hersteller: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen Protected trademarks and trade names remain the property of their respective owners. Brand names and registered trademarks are mentioned for explanation only and do not imply any affiliation between our company and the trademark holders. The offered article is original, factory-new goods from the manufacturer.
CNGA120408TM-M2 WBH20C - Walter Tools
Benefit from the combination of CBN wear resistance and a robust rhombic geometry for consistent, high-quality hard turning results; request supply or technical advice through Metav Werkzeuge for rapid processing and application support. CNGA120408TM-M2 WBH20C indexable turning insert for hard turning, Walter Tools A CNGA120408TM-M2 WBH20C indexable turning insert engineered for precision hard turning and stable, repeatable machining of hardened steels and comparable hard materials CBN grade WBH20C for hard turning Rhombic 80° geometry for secure indexing 0.8 mm corner radius for robust edge Negative 0° rake for stable cutting Exceptional wear resistance for hardened materials The CBN-based cutting grade WBH20C delivers pronounced wear resistance and thermal stability when machining hardened steels. As a coated CBN grade developed for hard and highly abrasive workpieces, it sustains longer cutting intervals and reduces edge breakdown under high contact stresses. This leads to fewer interruptions for tool change, improved uptime and a more predictable production rhythm, which supports cost-effective batch machining and increases process reliability. Geometry and edge form for secure engagement and surface integrity The rhombic 80° shape combined with a 0.8 mm corner radius and the specified negative 0° rake provides a compromise between cutting strength and surface quality. The geometry promotes reliable clamping and repeatable indexability while the corner radius enhances edge robustness during interrupted cuts and heavy feeds. Together with the M2 chipbreaker, the insert controls chip formation to protect the workpiece surface and to maintain consistent component tolerances in serial production. Designed for productivity, process security and straightforward integration Classified in the Walter CBN / Hartstoff series, this insert is tailored for demanding hard-turning tasks and offers stable chip control, reproducible tool life and consistent finishes. The construction supports machining of pre-hardened and hardened steels, enabling higher cutting parameters where tool life permits and reducing cycle times. For application adjustments, machining parameters and grade selection, Metav Werkzeuge provides technical consultation to align insert choice with machine capability and workpiece requirements. For process-critical hard turning tasks, contact Metav Werkzeuge to secure the Walter Tools CNGA120408TM-M2 WBH20C insert and obtain tailored application advice and rapid delivery Technical Data Article number: CNGA120408TM-M2-WBH20C-WALTER Designation: CNGA120408TM-M2 WBH20C Product type: Indexable turning insert Series: Walter CBN / Hartstoff Facts Inscribed circle: 12 mm Thickness code: 04 Corner radius: 0.8 mm Rake/relief: Negative 0° rake Chipbreaker: M2 Tolerance class: G Special features Coated CBN grade WBH20C Suitable for hardened steels (H) Rhombic 80° insert geometry Robust edge for interrupted cuts Optimised for process reliability and repeatability Designed for hard turning and hard material applications FAQ What materials is this insert suitable for? The CNGA120408TM-M2 WBH20C insert is designed primarily for hardened steels and similar hard materials, reflecting its CBN-based grade suited to hard turning applications. How does the WBH20C grade improve tool life compared with conventional grades? The WBH20C CBN composition offers higher wear resistance and thermal stability, which extends cutting intervals and provides more consistent tool life under high-contact, high-hardness conditions. Is the insert compatible with standard CNGA toolholders? Yes, the CNGA120408TM-M2 format corresponds to standard CNGA clamping systems; the insert’s rhombic 80° form and indexable design allow straightforward integration into holders made for CNGA inserts. What benefits does the M2 chipbreaker provide during hard turning? The M2 chipbreaker improves chip control under the high pressures common in hard turning, supporting stable cutting, reduced risk of built-up edge and a consistent surface finish on the workpiece. Manufacturer / Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.
CNGA120408TM-MW2 WBH10C MW2 Wendeplatten - Walter Tools
Take advantage of a high‑wear CBN grade for dependable hard‑turning, a rhombic 80° geometry for flexible tool positioning and a MW2 chipbreaker for consistent chip control — all supporting uninterrupted production. Order through Metav Werkzeuge or contact our specialists for application advice. CNGA120408TM-MW2 WBH10C turning insert — CBN grade, rhombic 80° The CNGA120408TM-MW2 WBH10C is a rhombic 80° indexable turning insert designed for productivity in hard‑turning applications and the machining of hardened steels. CBN grade WBH10C for hard materials Rhombic 80° geometry for versatile tool set‑up 0° negative rake for stable cutting forces 0.8 mm corner radius for robust edge life MW2 chipbreaker for controlled chip formation Performance tuned for hardened steels and demanding cuts The CBN‑based WBH10C grade delivers exceptionally high wear resistance where conventional carbide grades reach their limits. Its composition is optimised for the machining of hardened steels, enabling longer tool life and fewer insert changes. With a negative rake of 0° the insert reduces cutting‑edge deflection and improves stable cutting under high contact loads, which in turn supports predictable cycle times and less scrap in serial production. Consistent edge strength and chip control for quieter processes A 0.8 mm corner radius provides a balance between edge strength and achievable surface finish, offering robustness on interrupted cuts while maintaining acceptable surface quality. The dedicated MW2 chipbreaker shapes swarf into controllable segments, lowering the risk of entanglement and simplifying chip evacuation. Together these features reduce secondary handling and contribute to a safer, more efficient machining environment. Practical benefits for process reliability and set‑up flexibility The rhombic 80° form allows multiple approach angles and easy indexability, which reduces set‑up complexity and minimises downtime for tool changes. Classified for hard materials, this insert supports the shift to more productive hard‑turning strategies, improving throughput without compromising repeatability. Selection of this grade from Walter Tools can lead to measurable process improvements where wear resistance and edge stability are critical. Contact Metav Werkzeuge for tailored tool recommendations specifying the Walter Tools CBN grade WBH10C and receive expert guidance for hard‑turning applications Technical Data Article number: CNGA120408TM-MW2-WBH10C-WALTER ISO designation: CNGA120408TM-MW2 WBH10C Product type: Indexable turning insert Manufacturer: Walter Tools Facts Inscribed circle: 12 mm Thickness: 4 mm Corner radius: 0.8 mm Relief angle: 0° (negative) Tolerance class: G Special features Grade: WBH10C (coated CBN) Series: Walter CBN / hard material Chipbreaker: MW2 Plate form: Rhombic 80° Suitable for: hardened steels, pre‑hardened steel, general steel applications FAQ What materials is this insert designed for? The CNGA120408TM-MW2 WBH10C insert is specified for hardened steels and favourable for pre‑hardened and other high‑hardness steel applications thanks to its WBH10C CBN grade. How does the MW2 chipbreaker affect machining? The MW2 chipbreaker ensures consistent chip segmentation and evacuation, reducing swarf issues and improving process safety when using this Walter Tools indexable turning insert. Is the 0° negative rake suitable for heavy cuts? Yes, the 0° negative rake increases edge stability under high cutting forces, making the insert appropriate for heavier engagement typical in hard‑turning operations. Can this insert be rotated for multiple cutting edges? The rhombic 80° geometry permits indexing to fresh edges, supporting longer tool life and flexible toolholder positioning without compromising cutting performance. Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany Protected trademarks and trade names are the property of their respective owners. Brand names and trademarks are mentioned for explanation purposes only; there is no affiliation between our company and the named manufacturers. The offered article is original, brand‑new merchandise from the manufacturer.
CNGA120408TM-MW2 WBH20C MW2 Wendeplatten - Walter Tools
Take advantage of the combination of highly wear‑resistant CBN grade, stable geometry and reliable chip control to maintain consistent performance in hard turning operations; order the insert through Metav Werkzeuge or consult their specialists for process advice. CNGA120408TM-MW2 WBH20C indexable turning insert — CBN grade for hardened steels, rhombic 80° by Walter Tools The CNGA120408TM-MW2 WBH20C is a negative‑rake, rhombic 80° indexable insert engineered for consistent hard turning and finishing of hardened steels in industrial production environments CNGA120408TM-MW2 WBH20C turning insert by Walter Tools Coated CBN grade WBH20C for hard turning Rhombic 80° shape, negative 0° clearance 0.8 mm corner radius with MW2 chipbreaker High‑performance hard turning with long tool life The CBN‑based cutting grade WBH20C provides exceptional abrasion resistance for demanding operations on hardened steels, delivering longer tool life compared with conventional carbide solutions. The coated cubic boron nitride matrix is developed for high contact stresses and elevated temperatures encountered in hard machining, which translates into fewer insert changes and increased uptime. This makes the insert particularly suitable where reproducible cycle times and low corrective rework are essential. Geometry for stable cutting and improved surface finish The Rhombic 80° configuration and 0° (negative) clearance stabilise cutting forces and support axial and radial rigidity during turning. A 0.8 mm corner radius gives a robust edge that resists chipping while still enabling good surface integrity, and the MW2 chipbreaker is tuned to promote predictable chip formation and evacuation in interrupted or continuous cuts. Together these geometric choices reduce vibration, help maintain dimensional accuracy and support consistent part quality. Process efficiency and reproducible results in series production Designed within the Walter CBN / Hard material series, the insert addresses the ISO H group for hardened steels, enabling higher cutting speeds and continuous chip control where traditional inserts would wear early. The combination of grade and geometry supports reduced secondary operations and contributes to improved overall process efficiency. For production managers, this means a lower total cost of machining per part due to extended edge life and steady performance under repetitive loads. Integration, selection and shop‑floor reliability The insert fits standard indexable turning toolholders for negative‑rake rhombic inserts and is available with thickness and size codes matching common holder families, enabling straightforward tool changeovers and inventory handling. When selecting grades and cutting data, prioritise the WBH20C grade for components manufactured from hardened steels or where hard finishing is required. For specification matching and cutting‑data recommendations, Metav Werkzeuge provides application guidance and can assist in choosing the optimal tooling setup for stability and productivity. For application support or to specify Walter Tools’ CBN technology for hardened machining, contact Metav Werkzeuge to request the CNGA120408TM-MW2 WBH20C insert and obtain tailored cutting‑data and procurement assistance via info@metav-werkzeuge.com or +49 2822 7131930. Technical Data SKU: CNGA120408TM-MW2-WBH20C-WALTER Designation: CNGA120408TM-MW2 WBH20C Product type: indexable turning insert Series: Walter CBN / Hard material Grade: WBH20C Manufacturer: Walter Tools Version: A Specifications Shape: Rhombus 80° Free angle: 0° (negative) Corner radius: 0.8 mm Insert size: 12 Thickness code: 04 Chipbreaker: MW2 Tolerance class: G Applications & Features Suitable for: hardened steels (ISO H) Also applicable: pre‑hardened steel operations Coated CBN cutting grade optimised for hard machining Stable edge for repeatable process reliability Designed for predictable chip control and surface quality FAQ What materials are recommended for this insert? The CNGA120408TM-MW2 WBH20C insert is recommended primarily for hardened steels (ISO H); the WBH20C CBN grade is formulated for hard turning and hard finishing tasks. How does the MW2 chipbreaker affect machining? The MW2 chipbreaker promotes controlled chip formation and evacuation, improving stability and surface quality in continuous and interrupted hard turning with the CNGA120408TM‑MW2 WBH20C. Which edge radius is supplied and what benefit does it offer? The insert features a 0.8 mm corner radius, which offers a robust cutting edge that reduces chipping and helps maintain dimensional stability on hard materials. Is the insert compatible with standard negative‑rake holders? Yes, the insert’s rhombic 80° geometry and negative clearance are intended for use with standard holders designed for this insert family; confirm holder compatibility before assembly. Does this insert belong to a specialised series? It is part of the Walter CBN / Hard material series; the WBH20C grade is a coated CBN solution optimised for demanding hard machining. Manufacturer / Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany Die Walter AG (branded as Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Sandvik group. Protected trademarks and product names belong to their respective owners. Mention of brand names serves informational purposes only and does not imply any affiliation.
CNGA120408TM-MW2 WBH30 MW2 Wendeplatten - Walter Tools
Take advantage of the combination of CBN cutting grade WBH30, a stable MW2 chipbreaker and robust 80° rhombic geometry for consistent, productive hard-turning operations; order the insert directly via Metav Werkzeuge or consult the technical team for process data and integration advice. CNGA120408TM-MW2 WBH30 indexable turning insert — Walter Tools, CBN grade for hard turning with MW2 chipbreaker The CNGA120408TM-MW2 WBH30 indexable turning insert is designed for hard turning of hardened steels, offering an 80° rhombic shape, a 0° negative rake and the MW2 chipbreaker for stable chip formation and reliable engagement. CBN grade WBH30 for hard turning MW2 chipbreaker for chip control Rhombic 80° geometry for versatile cutting 0° negative rake for robust engagement Maximised process stability and productivity for hard materials The combination of the CBN cutting material and the WBH30 grade targets the demands of hardened steels, where abrasion resistance and thermal stability are crucial. The insert’s MW2 chipbreaker promotes stable chip formation, reducing interruptions caused by irregular chips and enabling more consistent cycle times. The 80° rhombic geometry gives flexibility across turning operations, while the 0° negative rake increases insert strength during heavy engagement. These characteristics translate into fewer indexings, longer effective cutting periods and measurable improvements in throughput for hard-machining applications. Predictable tool life and controlled cutting behaviour Built with a defined corner radius 0.8 mm and manufactured to tolerance class G, the insert delivers reliable edge strength and repeatability across batches. The geometry and grade combination supports reproducible wear behaviour, which simplifies process planning and tool-change scheduling. Robustness under load means less risk of edge chipping during interrupted cuts and improved surface integrity on finished components. The result is reduced scrap rates and a more economical machining sequence when working with pre-hardened and fully hardened workpieces. Practical application notes and process integration This turning insert is certified for use on hard materials according to ISO 513 and is specifically targeted at the hard turning segment where conventional carbide inserts may fail prematurely. The MW2 chipbreaker is optimised for controlled chip flow; however, cutting parameters depend on machine rigidity and part set-up. For newcomers to CBN technology, small-step trials with progressive feed and depth adjustments are recommended to identify the optimal balance between surface finish and material removal rate. For detailed cutting data, toolholder compatibility or recommended clamping practices, the Metav Werkzeuge consultants can provide documented recommendations and cycle examples to accelerate process adoption. Discuss integration of Walter Tools CBN inserts with Metav Werkzeuge’s application experts to receive tailored cutting data, toolholder recommendations and to ensure immediate compatibility with existing turning setups. Technical data Article number: CNGA120408TM-MW2-WBH30-WALTER ISO designation: CNGA120408TM-MW2 WBH30 Product type: indexable turning insert Manufacturer: Walter Tools Series: Walter CBN / hard material Numbers / Core technical data Insert size: 12 mm Thickness: 4 mm Corner radius: 0.8 mm Rake: 0° (negative) Tolerance class: G Special features / Materials Cutting grade: WBH30 (CBN) Chipbreaker type: MW2 Shape: Rhombus 80° Suitable for: hardened steels (ISO 513) Suitable for: pre-hardened steel applications FAQ What materials is this insert suitable for? The CNGA120408TM-MW2 WBH30 indexable turning insert (Walter Tools) is intended for hardened steels and pre-hardened steel applications in accordance with ISO 513, where CBN grades provide the required wear resistance. How does the MW2 chipbreaker affect machining? The MW2 chipbreaker on this Walter Tools insert controls chip formation for stable evacuation and consistent cutting forces, contributing to improved process stability during hard turning. Can this insert be used for interrupted cuts? Yes. The combination of a 0° negative rake and a 0.8 mm corner radius offers enhanced edge strength, making the insert more tolerant of interrupted cuts compared with more acute geometries. Is the insert compatible with standard CNGA toolholders? The ISO designation CNGA120408TM indicates compatibility with holders designed for the CNGA family; correct seat and clamping torque should be checked to ensure secure mounting and repeatable results. Manufacturer / Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanation only; there is no affiliation between Metav Werkzeuge and the trademark owners. The offered item is an original, factory-new product of the manufacturer.
CNGA120408TS-2 WBK20 WBK20 Wendeplatten - Walter Tools
Take advantage of the combination of high wear resistance, precise edge geometry and stable chip control for reliable hard-material turning operations; order directly via Metav Werkzeuge or consult our specialists for application-specific recommendations. CNGA120408TS-2 WBK20 — Indexable turning insert, CBN grade, Walter Tools The CNGA120408TS-2 WBK20 is an indexable turning insert engineered for hard, high-wear machining tasks such as hardened steels and similar alloys, offering stable cutting performance in demanding production environments. CBN grade WBK20 for hard, high-wear machining Rhombic 80° geometry for stable cutting performance 0° negative rake for reliable chip control 0.8 mm corner radius for versatile finishing Consistent productivity when machining hardened materials The CBN-based WBK20 grade provides exceptionally high abrasion resistance compared with conventional carbide solutions; this makes the insert particularly suitable for turning hardened steels and other high-wear alloys where tool life and process stability determine efficiency. The CBN substrate resists edge wear, reducing tool changes and interruptions. In practice, this translates into fewer changeovers and improved machine utilisation, contributing directly to lower piece costs in series production. Precise geometry for predictable surface quality Built on a Rhombic 80° platform with a 0.8 mm corner radius and a 0° negative rake, the insert delivers predictable cutting forces and manageable chip formation. The combination of geometry and rake ensures controlled engagement and stable cutting when confronting tough workpiece materials, helping to maintain a consistent surface finish and dimensional repeatability. The insert’s geometry is particularly effective in finishing and semi-finishing passes where process reliability and surface integrity are priorities. Process advantages and handling in the workshop As an indexable turning insert, the CNGA120408TS-2 WBK20 simplifies tool inventory and reduces setup time: indices can be rotated to present fresh cutting edges without regrinding, which supports uninterrupted production cycles. The insert’s chipbreaker designation and negative rake angle promote effective chip control under high thermal and mechanical load, aiding coolant-free or reduced-coolant strategies in appropriate applications. Selection of this insert supports leaner workflows and predictable maintenance intervals. Contact Metav Werkzeuge for tailored application advice, material suitability checks and to request the CNGA120408TS-2 WBK20 from Walter Tools for immediate integration into the production process. Technical Data Article number: CNGA120408TS-2-WBK20-WALTER Designation: CNGA120408TS-2 WBK20 Product type: Indexable turning insert Manufacturer: Walter Tools Series: Walter Schneidstoffsorte - Serie offen Execution: A Tolerance class: G Core specifications Insert size: 12 mm Corner radius: 0.8 mm Free/lead angle: 0° (negative) Chipbreaker: 2 Thickness code: 04 Special features CBN cutting material (WBK20) for hard, high-wear applications Rhombic 80° insert form Designed for hardened steels and similar alloys (see product matrix) Stable edge geometry for extended tool life FAQ What materials is this insert best suited to machine? The CNGA120408TS-2 WBK20 from Walter Tools uses a CBN grade optimised for machining hardened steels and other high-wear materials; suitability should be confirmed against the specific product matrix for best results. Can the CNGA120408TS-2 WBK20 be used for finishing passes? Yes, the combination of 0.8 mm corner radius and Rhombic 80° geometry provides the stability and surface control required for consistent finishing operations. How does the negative 0° rake influence cutting behaviour? The 0° negative rake increases edge robustness and stabilises chip formation under high mechanical load, improving process reliability when turning hard materials. Is the insert compatible with standard CNGA toolholders? The CNGA120408TS-2 WBK20 follows the CNGA designation and is intended for standard CNGA-compatible toolholders; verify holder fit and clamping specifications before mounting. Are index rotations possible to extend edge life? Yes, as an indexable turning insert the CNGA120408TS-2 WBK20 allows edge indexing to present fresh cutting corners and extend the usable life of the insert. Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanation only. There is no connection between our company and the mentioned brands. The offered item is original, brand-new merchandise from the manufacturer.
CNGA120412SM-MWS WCH10C Wendeplatten - Walter Tools
Take advantage of the combination of high-speed performance, reliable chip control and stable edge life for efficient hard turning workflows. Benefit from the coated ceramic cutting grade and the optimised chipbreaker geometry to reduce downtime. Order the insert directly via Metav Werkzeuge or consult our technical team for application support. CNGA120412SM-MWS WCH10C indexable turning insert — Walter Tools, coated ceramic for hard machining The CNGA120412SM-MWS WCH10C is an indexable turning insert developed for hard machining of hardened steels; it pairs a coated ceramic cutting grade with a dedicated chipbreaker and a rhombic 80° geometry for stable, high‑speed turning. WCH10C: coated ceramic CBN grade Optimised for hardened steels (ISO H) Rhombic 80° geometry, corner radius 1.2 mm Negative 0° clearance for stable cutting Consistent performance under high cutting speeds The WCH10C cutting grade is a coated ceramic formulation designed for high cutting speeds and temperature‑resistant conditions encountered in hard turning. In practice, this means a reduction in flank wear when machining hardened steels, as the coating and ceramic substrate resist thermal softening and abrasive loads. The result is a more predictable tool life, which supports stable process planning and fewer unscheduled insert changes in production. Reliable chip control and cutting stability Built around the chipbreaker MWS and an rhombic 80° insert form, the geometry promotes even chip segmentation and evacuation. The corner radius 1.2 mm provides a balance between edge strength and surface finish, while the negative 0° clearance increases cutting edge stability in interrupted cuts or heavy feed conditions. These combined features translate into consistent surface integrity and reduced risk of edge chipping during hard finishing operations. Seamless integration and production benefits As an indexable turning insert from the Walter CBN / hard material series, this grade is intended for applications where repeatability and process reliability matter. The insert code and form allow simple mounting in standard CNGA toolholders, enabling quick index changes and minimal setup time. Because the grade is targeted at ISO group H (hardened steels), planning toolpaths and speeds becomes more straightforward: predictable wear behaviour supports longer production runs and improved overall equipment effectiveness. For recommendations on tooling set‑ups or to source the CNGA120412SM-MWS WCH10C insert for a specific hardened-steel application, contact Metav Werkzeuge for technical consultation and order processing via info@metav-werkzeuge.com or +49 2822 7131930 Technical Data Article number: CNGA120412SM-MWS-WCH10C-WALTER Product type: Drehwendeschneidplatte / indexable turning insert Designation: CNGA120412SM-MWS WCH10C Brand: Walter Tools Data Corner radius: 1.2 mm Inscribed circle / size: 12 mm Relief / clearance: 0° (negative) Thickness code: 04 Tolerance class: G Special features Series: Walter CBN / hard material Grade: WCH10C (coated ceramic cutting grade) Chipbreaker: MWS Geometry: Rhombic 80° Application focus: Hardened steels (ISO H) Execution: A FAQ What materials is this insert designed to machine? The CNGA120412SM-MWS WCH10C is formulated for machining hardened steels (ISO group H) and is suitable where high wear resistance and thermal stability are required. How does the MWS chipbreaker affect productivity? The chipbreaker MWS promotes controlled chip formation and evacuation, which improves process reliability and reduces manual chip handling during high‑volume hard turning. Is this insert compatible with standard CNGA toolholders? Yes, the insert form and designation correspond to standard CNGA holders; the rhombic 80° shape and size code allow straightforward mounting and indexing. What advantages does the negative 0° clearance provide? The negative 0° relief increases cutting edge support and stability, particularly beneficial for interrupted cuts and heavy feed scenarios common in hard finishing. Can this grade be used for pre‑hardened steel? The WCH10C grade is intended for hard machining and is also suitable for many pre‑hardened steels, offering robust edge life under elevated cutting temperatures. Manufacturer / Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenbezeichnungen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers Walter Tools.
CNGA120412SM-S WCH10C WCH10C Wendeplatten - Walter Tools
The combination of high wear resistance and a stable rhombic geometry ensures reliable hard-turning performance, while the coated ceramic grade delivers consistent surface quality under elevated temperatures. Order the CNGA120412SM-S WCH10C turning insert directly via Metav Werkzeuge or ask our consultants if needed. CNGA120412SM-S WCH10C turning insert — Walter Tools, Rhombic 80°, CBN/hard-material grade The CNGA120412SM-S WCH10C is a negative-rake, rhombic 80° indexable insert engineered for hard turning and temperature-resistant cutting of hardened steels. WCH10C coated cutting ceramic Designed for hard turning of hardened steel Rhombic 80° geometry for stable cutting 0° negative rake for interrupted cuts High-performance hard turning for consistent results The insert’s WCH10C grade is a coated cutting ceramic developed for high cutting speeds and temperature-resistant conditions; this makes it particularly suited to machining hardened steel and other hard materials. The combination of a wear-resistant substrate and a tailored coating results in extended tool life and reduced edge breakdown, which directly supports predictable cycle times and fewer tool changes. In production environments where component hardness and thermal loads are high, the insert’s capability to maintain a sharp, stable edge reduces the risk of scrap and rework, contributing to improved process efficiency. Geometry designed for stability and chip control With a Rhombic 80° form and a 1.2 mm corner radius, the geometry provides a stable cutting line and improved edge strength, while the integrated S-type chipbreaker promotes controlled chip formation in hard turning tasks. The 0° negative rake enhances resistance to impact and is beneficial when machining interrupted surfaces or workpieces with variations in hardness. Together these features produce a consistent surface finish and enable secure engagement on robust tool holders, making the insert a reliable choice for demanding turning operations. Efficiency through material selection and wear resistance As a member of the Walter CBN / hard-material series, the insert emphasises wear resistance and thermal stability. The coated ceramic chemistry is chosen to withstand high temperatures at the cutting zone, meaning that machining parameters can be pushed to higher speeds without rapid degradation. The result is an improved cost-efficiency per component: fewer tool changes, longer uninterrupted running, and a higher throughput in hard machining applications. Where abrasive wear and edge softening would typically limit performance, this grade maintains integrity for longer production runs. Practical application and compatibility guidance The insert is supplied in the CNGA120412SM-S format and is compatible with tool systems designed for rhombic 80° turning inserts; its designation aligns with standard clamping and seat geometries. It is particularly indicated for the ISO material group H (hardened steels) and is likewise suitable for pre-hardened steel workpieces where a wear-resistant tool is required. For best results, pair the insert with a rigid toolholder and adapt cutting parameters to the specific workpiece hardness and machine capabilities—this approach secures the balance between productivity and surface quality. Contact Metav Werkzeuge for tailored cutting data, inventory availability and application consulting on Walter Tools CNGA120412SM-S WCH10C turning inserts Technical Data Article number: CNGA120412SM-S-WCH10C-WALTER Designation: CNGA120412SM-S WCH10C Manufacturer: Walter Tools Facts Insert form: Rhombic 80° Corner radius: 1.2 mm Inscribed circle: 12 mm Thickness: 04 Relief angle: 0° (negative) Tolerance class: G Special features Grade: WCH10C Series: Walter CBN / Hard material Chipbreaker: S Execution: A Suitable for: hardened steel Suitable for: pre-hardened steel FAQ What materials is this insert suited for? The CNGA120412SM-S WCH10C insert is designed for machining hardened steel and is also suitable for pre-hardened steel applications, reflecting the intended ISO material group H. How does the 0° negative rake affect performance? A 0° negative rake increases edge robustness for interrupted cuts and heavy engagement; the CNGA120412SM-S WCH10C benefits from this geometry when stability and impact resistance are priorities. Which chip control can be expected with this grade? The integrated S-type chipbreaker in the CNGA120412SM-S WCH10C promotes stable chip formation during hard turning, aiding safe evacuation and consistent surface quality. Is this insert compatible with standard toolholders for CNGA inserts? Yes, the CNGA120412SM-S format corresponds to common toolholder interfaces for rhombic 80° inserts; ensure the holder suits negative-rake inserts and provides sufficient rigidity. Manufacturer/Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany The Walter AG (brand appearance: Walter Tools) is among the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik Group. Protected trademarks and trade names remain the property of their respective owners. Mark names and registered trademarks are cited solely for explanation and identification; no affiliation with our company is implied.
CNGA120412T02020 WCK10 WCK10 Wendeplatten - Walter Tools
Take advantage of the combination of high-speed ceramic cutting grade WCK10, a stable 1.2 mm corner radius and a rhombic 80° geometry to improve cutting-edge life and process stability; order the insert directly via Metav Werkzeuge or consult their advisors for matching cutting data and toolholders. CNGA120412T02020 WCK10 indexable turning insert — rhombic 80°, 0° negative (Walter Tools) The CNGA120412T02020 WCK10 is an indexable turning insert designed for temperature‑resistant, high‑speed turning applications where a ceramic cutting grade delivers repeatable edge life and secure chip control. High-speed ceramic grade WCK10 Rhombic 80° insert geometry 1.2 mm corner radius for edge strength Negative 0° rake for stable cuts High cutting speeds and thermal resistance for productive turning The insert uses the WCK10 ceramic cutting grade, developed for operations that demand high cutting speeds and resistance to elevated temperatures. Ceramic grades trade ductility for thermal stability, which means noticeably lower wear at the cutting edge when machining under high heat. For production environments seeking faster cycle times, this grade can extend tool life and reduce downtime associated with frequent index changes. The material behaviour of ceramic inserts differs from carbide; therefore, cutting parameters should be adapted to exploit the grade’s strength while preventing mechanical shock to the edge. Geometry engineered for process stability and reliable edge life A rhombic 80° geometry combined with a 1.2 mm corner radius gives a robust cutting edge that tolerates interrupted cuts and provides consistent surface quality. The negative 0° rake reduces cutting forces and enhances edge strength, making the insert suitable for more demanding turning tasks where a stable cutting action is required. The tolerance class G indicates consistent manufacturing precision, and the form and thickness codes (insert size 12, thickness 04) support predictable mounting in standard toolholders. These attributes together support improved chip formation and more uniform wear, which is beneficial in medium‑ to large‑batch production. Practical application scope and selection guidance This indexable insert is aimed at industrial turning operations where ceramic grades are considered for their speed and heat resistance; suitability for specific workpiece materials should be checked against the manufacturer’s product matrix. The insert is especially relevant where short contact times at high rpm are preferred over heavy interrupted cuts. Technical advisors can assist with choosing the correct cutting data and toolholder combination to match shop conditions. For further technical data or to confirm compatibility with particular materials and ISO groups, Metav Werkzeuge can provide detailed recommendations. Contact Metav Werkzeuge for tailored machining recommendations and to specify the correct Walter Tools WCK10 insert for the intended application; their technical team will advise on cutting data, holder selection and process optimisation. Technical Data Article number: CNGA120412T02020-WCK10-WALTER Product type: Indexable turning insert Manufacturer: Walter Tools ISO designation: CNGA120412T02020 WCK10 Facts Insert size: 12 Thickness: 04 Corner radius: 1.2 mm Rake angle: 0° (negative) Tolerance class: G Special features Cutting grade: WCK10 (ceramic cutting grade) Geometry: Rhombus 80° Series: Walter Schneidstoffsorte - Serie offen Sorten- und Serienbeschreibung: Schneidkeramik for high cutting speeds and temperature‑resistant machining; check product matrix for workpiece suitability FAQ What materials is this ceramic grade suited for? The WCK10 ceramic cutting grade is intended for temperature‑resistant, high‑speed turning; final suitability for particular workpiece materials should be checked against the product matrix provided with the CNGA120412T02020 WCK10 insert. Which insert geometry and edge radius does it feature? This indexable insert has a rhombic 80° geometry with a 1.2 mm corner radius and a negative 0° rake, designed to combine edge strength with consistent chip control. What are the size and thickness designations for this insert? The designation CNGA120412T02020 WCK10 corresponds to an insert size 12 and thickness code 04; these codes identify mounting and clamping compatibility in standard toolholders. How precise is the manufacturing tolerance? The insert is produced to tolerance class G, ensuring repeatable dimensions for predictable clamping and machining performance. Is this insert suitable for interrupted cuts or heavy roughing? The combination of a robust corner radius and negative rake improves resistance to mechanical shock, making it more tolerant of interrupted cuts; however, ceramic grades are primarily chosen for high‑speed finishing and semi‑finishing applications, so cutting conditions should be adapted accordingly. Manufacturer / Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.
CNGA120412TM-2 WBH10 Wendeplatten - Walter Tools
Benefit from the combination of the WBH10 CBN grade for exceptional wear resistance and the robust Rhombus 80° geometry with a 1.2 mm corner radius for stable cutting in hard machining; order the insert directly via Metav Werkzeuge or consult our specialists for application advice. CNGA120412TM-2 WBH10 indexable turning insert — Walter Tools CNGA120412TM-2 WBH10 is a negative-insert turning grade engineered for hard machining and finishing of hardened steels and similar high-hardness materials CBN grade WBH10 for hard machining Rhombus 80° insert geometry for stability 0° negative clearance for robust cutting Corner radius 1.2 mm for consistent surface finish High wear resistance for demanding hard turning The WBH10 grade is a CBN (cubic boron nitride) cutting material developed specifically for prolonged service when machining hardened steels and other highly abrasive workpieces. CBN is a superabrasive that maintains a sharp, wear-resistant cutting edge at high temperatures and contact pressures. In practice this means longer tool life, fewer insert changes and more predictable process windows compared with conventional carbide when working in the hardness ranges indicated by ISO 513 for group H. The result is improved uptime and lower overall machining cost per component. Robust geometry that enhances process security The insert’s Rhombus 80° shape combined with a negative 0° clearance produces a highly stable cutting edge that resists deflection under heavy radial loads. The 1.2 mm corner radius is sized to balance edge strength and surface finish—suitable for many finishing and semi-finishing operations on pre-hardened and hardened materials. The standardised CNGA120412TM-2 outline and 12 mm size allow straightforward integration into common turning toolholders, supporting repeatable set-up and simple inventory management. Consistent chip control and productivity benefits A controlled chip breaker configuration (span breaker type 2) and the CBN substrate deliver consistent chip formation even under the higher cutting forces typical of hard turning. Stable chip flow reduces risk of built-up edge and unpredictable interruptions, improving part quality and machine efficiency. Where process reliability and repeatability are priorities, this insert supports fewer interruptions for tool change and reduced scrap rates, contributing to a measurable productivity advantage on series operations. Contact Metav Werkzeuge for application-specific recommendations, toolholder pairing and to request the CNGA120412TM-2 WBH10 insert directly — application engineers are available by e‑mail or phone to advise on machining parameters and workpiece suitability Technical data SKU: CNGA120412TM-2-WBH10-WALTER Designation: CNGA120412TM-2 WBH10 Product type: Indexable turning insert (Drehwendeschneidplatte) Series: Walter CBN / Hartstoff Facts Geometry: Rhombus 80° Corner radius: 1.2 mm Plate size: 12 Plate thickness: 04 Clearance angle: 0° (negative) Tolerance class: G Grade: WBH10 Span breaker: 2 Materials & features Suitable for: gehärtete Stähle (ISO group H) Suited for: pre-hardened Stahl applications Coating / substrate: CBN cutting material Execution: A FAQ What materials is this insert suitable for? The CNGA120412TM-2 WBH10 insert is specified for machining gehärtete Stähle (ISO group H) and is intended for hard machining and pre-hardened Stahl applications. What does the WBH10 grade mean in practice? WBH10 denotes a Walter CBN cutting grade optimised for high wear resistance and stable cutting when turning hardened materials; the grade provides consistent performance under elevated contact pressures. How does the Rhombus 80° geometry affect cutting? Rhombus 80° geometry offers a robust edge for radial stability and access to tight internal contours while the 0° negative clearance enhances edge strength for heavy-duty cuts. Is the insert compatible with standard toolholders? The CNGA120412TM-2 outline and 12 mm plate size correspond to common turning toolholder pockets, enabling straightforward installation and repeatable set-up. What benefits does the 1.2 mm corner radius deliver? A 1.2 mm corner radius increases edge robustness and helps achieve a consistent surface finish in finishing and semi-finishing passes on hard materials. Manufacturer/Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen Protected trademarks and trade names are the property of their respective owners. Brand names and protected product designations are mentioned for explanatory purposes only. There is no connection between our company and the named brands. The offered item is an original, factory-new product from the manufacturer.
Why indexable inserts are indispensable in modern machining
Indexable inserts, also known as cutting inserts or indexable cutting inserts, are standardised, replaceable cutting elements that mount on tool holders such as turning bits, milling cutters or drills. Made from wear-resistant materials like carbide, cermet, ceramic or other superhard grades, they carry the actual cutting edge and allow a worn corner to be rotated or flipped instead of replacing or regrinding the entire tool body.
How these inserts work and when to choose them
In everyday workshop and production settings, indexable inserts perform the direct material removal on the workpiece. Standard inserts for tool systems without internal coolant typically feature closed faces or a single central fixing hole, with heat evacuation handled by external machine nozzles. Inserts designed for systems with internal coolant are engineered to support coolant flow: they include calculated chipbreaker geometries that guide an internal coolant jet under the chip or, in specialised designs, contain sintered microchannels to direct coolant right to the cutting edge. Such coolant-compatible inserts are essential for machining heat-resistant alloys, heavy cutting operations and deep internal machining, where thermal load and chip control are critical.
Tangible benefits for production and workshop efficiency
Choosing the right indexable inserts delivers measurable operational advantages:
- Reduced downtime: faster changeover because a worn insert is simply indexed rather than the whole tool being replaced.
- Extended cutting-edge life: targeted coolant application and optimised chipbreaker design lower thermal stress and improve tool life.
- Consistent part quality: predictable cutting-edge geometry from standardised inserts maintains tolerances across batches.
- Versatility: availability in carbide, cermet, ceramic and superhard grades permits selection according to workpiece material and cutting conditions.
- Lower tooling costs over time: fewer full-tool replacements and less regrinding required.
Metav as a dependable source for inserts and tooling systems
Metav combines decades of precision expertise with a wide-ranging supply chain, positioning itself as a practical partner for industry, craft and trade. From Emmerich on the Rhine, Metav operates as a quality filter for the European market, offering more than 250,000 products and serving over 48,000 customers. For procurement teams aiming to reduce supplier count while retaining technical reliability, Metav’s assortment of indexable inserts and compatible tool holders provides a central, trustworthy solution.
Quick summary
Indexable inserts (cutting inserts or indexable cutting inserts) enable economical, repeatable material removal by allowing worn cutting edges to be indexed or replaced quickly; coolant-adapted designs further reduce thermal load and enhance chip control for demanding applications.
FAQ
What materials are indexable inserts available in?
Indexable inserts are available in wear-resistant grades such as carbide, cermet, ceramic and other superhard materials, selected according to the workpiece material and cutting conditions.
When should I choose inserts with internal coolant support?
Choose inserts designed for internal coolant when machining heat-resistant alloys, performing heavy cuts or working in deep internal features, because the coolant reduces thermal load at the cutting edge and actively improves chip breakage.
How do chipbreaker geometries affect performance?
Chipbreaker geometries on indexable inserts guide the chip flow and, when matched to an internal coolant jet, direct the coolant under the chip to control temperature and facilitate reliable chip formation, which extends edge life and stabilises machining.
Can standard inserts be used with external coolant only?
Yes; standard inserts for tool systems without internal coolant typically have closed faces or a central fixing hole and rely on external machine nozzles for heat evacuation, which is sufficient for many routine, accessible cuts.
Why source inserts through Metav?
Metav supplies a broad range of indexable inserts and tooling, backed by decades of expertise and a comprehensive European stock, making it a practical choice for consistent quality and dependable delivery.
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