SNGN120412TM-S WBK30 Wendeplatten - Walter Tools

Take advantage of the combination of CBN-grade wear resistance, robust square 90° geometry, and a 1.2 mm corner radius for reliable heavy-duty hard turning; order the insert via Metav Werkzeuge or consult the technical advisors for process matching.

SNGN120412TM-S WBK30 – indexable turning insert, CBN grade, square 90° geometry (Walter Tools)

SNGN120412TM-S WBK30 is an indexable turning insert designed for hard and high-wear turning tasks, offering a square 90° cutting geometry for stable cutting conditions in hardened steels and similar materials.

• CBN grade WBK30 for high wear resistance
• Square 90° geometry for robust turning
• Corner radius 1.2 mm for stable edge life
• Negative 0° clearance for heavy cuts

High-performance hard turning with CBN technology

The insert combines a CBN cutting grade (WBK30) with a square geometry to deliver consistent performance in demanding turning operations. The use of cubic boron nitride provides excellent hardness and thermal stability, which translates into extended tool life and fewer tool changes under abrasive or high-temperature conditions. With a corner radius of 1.2 mm and a square 90° profile, the design supports predictable chip formation and repeatable dimensional control, making it suitable for series production where process stability is essential.

Geometry and chip control engineered for productivity

The negative 0° clearance and the specified chipbreaker S create a robust edge capable of withstanding heavy cuts and interrupted machining. This geometry prioritises mechanical strength of the cutting edge and optimises chip flow for reduced re-cutting of chips. As a result, cycle times can be shortened and machine uptime improved. The combination of these features supports a favourable cost-per-part calculation in high-volume or high-stress applications, emphasising efficiency and reduced downstream rework.

Material suitability and application guidance

The WBK30 grade is intended for hard machining tasks and is particularly targeted at hardened steels; depending on the specific grade matrix, suitability for cast iron or certain superalloys may apply. Material compatibility should be verified against the product matrix before series use. Where surface integrity and repeatable dimensional accuracy are required after hard turning, this insert provides the stable cutting edge and wear resistance necessary to maintain consistent part quality in production settings.

Practical integration and procurement clarity

The insert is supplied in the standard Walter Tools geometry code with a size reference of 12 mm and a thickness code of 04; it is manufactured to tolerance class G. The catalogue-dependent substrate and coating choices mean that the right variant can be selected to match machining parameters and machine capability. For procurement planning and process integration, Metav Werkzeuge can provide advice on the correct variant and application parameters to ensure the insert delivers the intended productivity and component quality.

Contact Metav Werkzeuge to discuss the suitability of the Walter Tools WBK30 inserts for specific hard-turning applications and to request the relevant product matrix and datasheet – info@metav-werkzeuge.com / +49 2822 7131930

Technical Data

• SKU: SNGN120412TM-S-WBK30-WALTER
• Type: Indexable turning insert
• Grade: WBK30
• Series: Walter Schneidstoffsorte - Serie offen
• Item designation: SNGN120412TM-S WBK30
• Tolerance class: G

Facts

• Geometry: Square 90°
• Corner radius: 1.2 mm
• Size: 12 mm
• Thickness code: 04
• Clearance/rake: 0° (negative)
• Chipbreaker: S

Special features

• CBN cutting material indication
• Material dependency: catalogue-dependent
• Suitable for hardened steels (verify product matrix)
• Robust design for interrupted or heavy cuts
• Walter Tools brand

FAQ

What applications is this insert intended for? This indexable turning insert with WBK30 CBN grade is intended for hard turning and high-wear tasks, primarily in hardened steels; application suitability should be confirmed via the product matrix.

How does the WBK30 grade influence tool life? The WBK30 CBN grade increases thermal and wear resistance, which generally extends tool life compared with conventional carbide grades in hard-turning operations.

What does the 0° (negative) clearance mean for machining? A negative 0° clearance provides a stronger cutting edge for heavy cuts and interrupted machining, reducing the risk of edge chipping under mechanical load.

Hersteller: Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

Protected trademarks and trade names remain the property of their respective owners. Brand names are used for explanatory purposes only. There is no affiliation between our company and the named brands. The offered article is an original, factory-new product of the manufacturer.