SNGN120712T01020 WWS20 WWS20 Wendeplatten - Walter Tools

Take advantage of the combination of high-temperature stability, robust geometry and predictable cutting behaviour for efficient turning operations; order the insert directly via Metav Werkzeuge or consult the specialists for application matching.

SNGN120712T01020 WWS20 – Square 90° turning indexable insert, ceramic grade (Walter Tools)

A SNGN120712T01020 WWS20 turning insert designed for temperature-resistant, high-speed turning applications where a ceramic grade offers improved wear resistance.

• Ceramic grade WWS20 for high-speed cutting
• Square 90° geometry for versatile turning
• Corner radius 1.2 mm for improved edge strength
• Negative rake 0° for stable cutting forces

Increased machining stability for demanding cuts

The Walter Schneidstoffsorte WWS20 is a ceramic grade developed for operations that require resistance to elevated temperatures and sustained cutting speeds. As a result, the insert provides improved tool life in thermally demanding cycles and reduced flank wear when compared with conventional carbide grades. The combination of a negative rake (0°) and a compact square geometry supports consistent cutting forces, which translates into predictable tool behaviour and easier process planning. For users unfamiliar with ceramic grades: they prioritise hardness and heat resistance over ductility, making them suitable for finishing and high-speed roughing of compatible workpiece materials.

Geometry that balances versatility and repeatability

The square, 90° form offers four usable cutting edges and a neutral presentation for turning operations where consistent edge orientation is important. The corner radius of 1.2 mm contributes to a stronger cutting edge, helping to resist chipping under intermittent loads while still allowing acceptable surface quality in many finishing tasks. The insert’s geometry and the tolerance class G give a reliable seating and repeatability in toolholders designed for the SNGN pattern, supporting shorter setup times and reproducible results across batches.

Clear technical handling and installation advantages

Marked by its designation and size coding, the insert is identified as SNGN format with a size indicator of 12 and a thickness code of 07, which aligns with standard turning insert conventions. This makes selection, stocking and replacement straightforward in production environments that use common indexable systems. The robust design with a negative free angle stabilises the tool–workpiece interface, reducing vibration sensitivity in many clamping arrangements. Where exact toolholder compatibility is required, refer to the machine and holder matrix or consult Metav Werkzeuge for verified pairings.

Process reliability and manufacturer pedigree

Produced under the Walter Tools identity, the insert benefits from the manufacturer’s focus on precision tooling and consistent product performance. The open series designation indicates that the WWS20 grade is intended for a range of applications; however, suitability should be confirmed against the product’s ISO workpiece group matrix. The documented attributes of Walter Tools support predictable machining outcomes, which is particularly valuable in serial production where repeatability and tool life influence cost per component.

For machining scenarios demanding ceramic performance and predictable edge life, contact Metav Werkzeuge to discuss application suitability of the SNGN120712T01020 WWS20 and to receive tailored recommendations – eMail: info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: SNGN120712T01020-WWS20-WALTER
• Article designation: SNGN120712T01020 WWS20
• Product type: Turning indexable insert (Drehwendeschneidplatte)
• Manufacturer: Walter Tools
• Grade/series: WWS20; Walter Schneidstoffsorte - Serie offen

Facts

• Size designation: 12
• Corner radius: 1.2 mm
• Thickness code: 07
• Geometry: Square 90°
• Free angle: 0° (negative)
• Tolerance class: G

Special features

• Coating / material: Katalogabhängig
• Grade type: Schneidkeramik (ceramic grade)
• Execution: N
• Series notes: High-temperature resistance; suitability per ISO workpiece matrix
• Designation without grade: SNGN120712T01020
• Full ISO designation: SNGN120712T01020 WWS20
• Additional informations: Sorteneinsatz / Bedeutung: Werkstoffeignung anhand der konkreten Produktmatrix prüfen

FAQ

What materials is this ceramic grade suitable for?
The WWS20 ceramic grade is designed for high-speed and temperature-resistant turning; suitability depends on the ISO workpiece group and should be checked against the product matrix for the SNGN120712T01020 WWS20 insert.

How does the 0° negative rake affect cutting performance?
A 0° (negative) rake increases cutting stability and edge strength, which helps the insert resist shock and maintain steady cutting forces during machining.

How many cutting edges are available per insert and what is the geometry?
The square 90° geometry provides four usable cutting edges and a robust profile suitable for a range of turning tasks.

What role does the 1.2 mm corner radius play in surface finish and tool life?
A 1.2 mm corner radius strengthens the cutting edge to reduce chipping; it balances edge life with achievable surface quality depending on feed and depth of cut.

Is the insert compatible with standard SNGN toolholders?
The designation and format correspond to the SNGN family; confirm exact holder compatibility with the toolholder manufacturer or consult Metav Werkzeuge for verified pairings.

Manufacturer/Responsible: 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 solely for explanatory purposes. There is no affiliation between our company and the named brands. The offered item is original and factory-new from the manufacturer.