SNGN120708T01020 WWS20 WWS20 Wendeplatten - Walter Tools

Take advantage of the high-speed ceramic grade WWS20, robust square 90° geometry and a 0° negative rake for consistent, temperature-resistant turning performance; order directly via Metav Werkzeuge or request guidance from our consultants for grade selection and process optimisation.

SNGN120708T01020 WWS20 – Indexable turning insert, ceramic grade WWS20, square 90°

A SNGN120708T01020 WWS20 indexable turning insert designed for high cutting speeds and temperature-stable operations in demanding turning applications

• Ceramic grade WWS20 for high-speed machining
• Square 90° geometry for robust turning
• 0° negative rake for stable chip control

Greater productivity through a ceramic cutting grade

The adopted WWS20 cutting grade is a ceramic formulation optimised for elevated cutting speeds and thermal stability. This composition reduces wear when temperatures rise, enabling longer tool engagement at higher spindle speeds. By choosing a ceramic grade, shops can expect fewer tool changes during high-speed finishing passes, which translates into improved equipment utilisation and a reduced cost per component. The insert’s material behaviour is explained clearly so shops without deep ceramics experience can understand the practical advantage: ceramics resist edge softening at temperature, keeping the cutting edge sharper for longer under suitable cutting conditions.

Robust geometry for consistent turning results

Featuring a square 90° shape and a 0.8 mm corner radius, the insert provides a stable cutting platform that supports both interrupted and continuous cuts. The square form delivers four usable cutting edges per insert, improving economy, while the 90° lead angle helps to distribute cutting forces evenly. The 0° negative rake enhances mechanical strength at the cutting edge, which is particularly beneficial when encountering harder layers or irregular surfaces. In short, the geometry contributes to repeatable surface finishes and predictable tool life in production environments.

Selection guidance and process benefits

The insert is part of the Walter open series and is designated for applications where thermal resistance and speed are priorities; actual suitability should be verified against the product matrix for the intended workpiece material. Because the grade is optimised for temperature-stable cutting, it works especially well for high-speed finishing of heat-tolerant steels and similar materials when parameters are matched correctly. For process planners, the key benefits are less downtime for insert changes, consistent surface quality and the possibility to shorten cycle times by increasing cutting velocity where the machine and workholding permit.

Practical note on integration and handling

The insert is supplied in the standard SNGN format with the ISO designation for straightforward machine-side integration. Its tolerance class G and standardised form make toolholder compatibility routine in modern turning tool systems. Although the specific catalogue indicates that some parameters are catalogue-dependent, the principal measurable values—corner radius, plate size and negative rake—allow planners to determine clamping and cutting parameter windows quickly. For machining centres moving to higher productivity, this insert represents a reliable step towards faster finishing cycles without sacrificing process stability.

Contact Metav Werkzeuge for exact grade matching and technical assistance with the SNGN120708T01020 WWS20 insert; phone +49 2822 7131930 or e‑mail info@metav-werkzeuge.com

Technical Data

• Article number: SNGN120708T01020-WWS20-WALTER
• ISO designation: SNGN120708T01020 WWS20
• Product type: Indexable turning insert (drehwendeschneidplatte)
• Series: Walter Schneidstoffsorte - Serie offen

Facts

• Insert size: 12
• Thickness code: 07
• Corner radius: 0.8 mm
• Rake angle: 0° (negative)
• Plate form: Square 90°
• Tolerance class: G

Special features

• Grade: WWS20 (ceramic)
• Material information: catalogue dependent
• Intended for high cutting speeds and temperature‑stable machining
• Square geometry for four cutting edges and robust turning
• Suitable where chip and edge stability at high temperatures is required

FAQ

What materials is this insert intended for? The WWS20 ceramic grade is formulated for high‑speed and temperature‑stable machining; suitability for specific workpiece materials should be checked in the product matrix for the SNGN120708T01020 WWS20 insert.

What are the key geometric specifications of the insert? The insert is a square 90° format with a 0.8 mm corner radius and a 0° negative rake, offering four usable edges and enhanced edge strength for robust turning.

How does the 0° negative rake affect cutting performance? A 0° negative rake increases mechanical edge strength and stabilises cutting forces, which helps when machining harder surfaces or during interrupted cuts with the WWS20 ceramic grade.

Can the insert be used for finishing and semi‑finishing operations? Yes. The ceramic grade and square geometry support high‑speed finishing and can be effective in semi‑finishing if cutting parameters align with machine capability and the product matrix recommendations.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com

Protected trademarks and trade names are the property of their respective owners. Brand names and protected designations are mentioned solely for explanatory purposes; there is no connection between our company and the named brands. The offered item is an original, factory‑new product of the manufacturer Walter Tools.