VCGT160402-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver wear resistance, a precise Rhombus 35° geometry and the MM4 chipbreaker for dependable turning of stainless steels and heat‑resistant alloys; order the insert via Metav Werkzeuge or consult our team for application support.

VCGT160402‑MM4 WSM20S turning insert by Walter Tools — Tiger·tec Silver coating, Rhombus 35° geometry

VCGT160402‑MM4 WSM20S is a turning insert developed for demanding machining of rostfreie Stähle and heat‑resistant superalloys, combining a robust coated‑carbide grade with a controlled chipformer for stable, repeatable cuts

• Tiger·tec Silver coating for wear resistance
• Geometry: Rhombus 35° for versatile turning
• MM4 chipbreaker for controlled chip formation
• 0.2 mm corner radius, 7° relief angle

Stable performance where heat and toughness meet

The Tiger·tec Silver‑based grade WSM20S is a coated carbide formulated for machining stainless steels and superalloys, materials known for poor thermal conductivity and high work‑hardening. That combination results in a grade that promotes stable chip formation and preserves edge integrity under high thermal and mechanical load. For production environments this translates into fewer interruptions, longer effective tool life and more consistent component quality — a measurable advantage when processing demanding batches or critical components.

Predictable chip control and surface quality

The MM4 chipbreaker is designed to enable repeatable chip segmentation when turning tough alloys, reducing the risk of stringing or snarled swarf. Controlled chip formation improves process reliability and contributes directly to surface finish and dimensional stability. The insert’s tolerance class G and the coated‑carbide construction support a steady cutting edge, which helps maintain target surface roughness and reduces the frequency of rework — a rational benefit for workshops seeking to raise first‑pass yield.

Geometry that simplifies machining strategy

A Rhombus 35° profile with a 0.2 mm corner radius and a 7° relief angle offers a balanced entry angle for a broad range of turning tasks. The design facilitates light to moderate finishing cuts and more aggressive roughing when required, while the insert size of 16 mm provides the rigidity needed for stable results. For engineers and machinists, this means fewer tool changes and simplified tool selection across mixed production runs, supporting shorter cycle times and lower setup complexity.

Practical explanation of key features

The designation VCGT160402 describes form and size: the “16” indicates the inscribed circle (16 mm), “04” corresponds to the thickness and “02” to the nose radius (0.2 mm). The WSM20S marking denotes Walter Tools’ coated‑carbide grade within the Tiger·tec Silver family, tailored for demanding alloys. The MM4 chipbreaker is a geometrical feature on the rake face that engineers use to influence chip curl and breakage — beneficial when turning ductile or gummy materials commonly encountered in rostfreie Stähle.

Reliability in daily production

Choosing an insert with these matched features reduces process variability: wear resistance from the coating, a stable edge from the grade chemistry and consistent chip control from the chipformer. This combination supports longer uninterrupted runs and helps maintain repeatable tool offsets, making the component suitable for small‑batch work and series production alike. For purchasing managers and production engineers, the result is improved machine uptime and predictable machining costs.

Contact Metav Werkzeuge to discuss Walter Tools Tiger·tec Silver WSM20S inserts and confirm the optimal grade and geometry for specific rostfreie Stahl or superalloy applications

Technical Data

• SKU: VCGT160402‑MM4‑WSM20S‑WALTER
• Designation: VCGT160402‑MM4 WSM20S
• Manufacturer: Walter Tools
• Product type: Turning indexable insert

Facts

• Inscribed circle / size: 16 mm
• Corner radius: 0.2 mm
• Relief / free angle: 7°
• Thickness: 4 mm
• Chipbreaker: MM4
• Tolerance class: G

Special features

• Series: Tiger·tec Silver
• Grade: WSM20S (coated carbide)
• Geometry: Rhombus 35°
• Material suitability: rostfreie Stähle, heat‑resistant superalloys / titanium
• Application focus: stable chip formation and wear resistance

FAQ

What materials is this insert suitable for?
The VCGT160402‑MM4 WSM20S insert is optimised for rostfreie Stähle and heat‑resistant superalloys (ISO groups M and S), offering wear resistance and edge stability for these demanding materials.

How does the MM4 chipbreaker affect machining?
The MM4 chipbreaker on the insert forces controlled chip curling and segmentation, which reduces long, stringy chips and improves process reliability when turning ductile or gummy alloys.

Can this insert be used for finishing passes?
Yes — with its 0.2 mm corner radius and Rhombus 35° geometry, the insert supports finishing and light‑to‑medium cutting operations while delivering consistent surface quality.

Is the Tiger·tec Silver coating suitable for high temperatures?
The Tiger·tec Silver coating enhances heat resistance and wear protection; combined with the WSM20S grade, it helps maintain cutting edge integrity in elevated cutting temperatures typical of rostfreie Stähle and superalloys.

What does the tolerance class G mean for setup?
Tolerance class G indicates consistent manufacturing tolerances for the insert, aiding repeatable tool offsets and predictable seating in standard indexable insert toolholders.

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

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