TCMT16T304-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Take advantage of the combination of high process security, Tiger·tec Silver-coated performance, and a reliable MM4 chipbreaker for consistent productivity; order or request application advice directly via Metav Werkzeuge for a smooth machining transition.

TCMT16T304-MM4 WSM20S triangle 60° indexable insert for turning/boring (Walter Tools)

The TCMT16T304-MM4 WSM20S is a triangle 60° indexable insert engineered for demanding turning and boring tasks, especially in rostfreier Stahl and heat-resistant alloys; its coated-carbide grade and robust chip control are aimed at production environments seeking stable cutting edges and repeatable part quality.

• Tiger·tec Silver-coated carbide grade WSM20S
• Triangle 60° form for versatile toolholders
• 0.4 mm corner radius for controlled cutting
• Optimised MM4 chipbreaker for secure chip control

Precision and process stability for high-alloy materials

The combination of the Tiger·tec Silver coating and the WSM20S grade supports machining of tough, heat-resistant alloys by improving thermal stability and wear resistance. Coating technology reduces friction at the rake face, which helps to maintain a sharp cutting edge under elevated temperatures and reduces the risk of built-up edge. For production applications this means fewer unplanned tool changes, more predictable tool life, and higher first-pass accuracy when working with rostfreier Stahl or nickel‑based alloys. The insert’s engineered surface finish also helps to promote consistent chip control, which is crucial when machining sticky or gummy materials that otherwise compromise cycle time and surface quality.

Geometry designed to increase usable edges and stability

A triangle 60° form provides three indexed cutting edges per insert, improving economy per index change and offering flexibility in tool‑holder fitment. The insert’s 0.4 mm corner radius balances edge strength with the ability to achieve a fine surface finish, while the 7° clearance angle reduces rubbing and lowers cutting forces during light finishing passes. The plate thickness T3 supports secure clamping and helps retain rigidity under interrupted cuts. Together with the MM4 chipbreaker, these geometric attributes ensure controlled chip formation and more uniform cutting loads, which results in steady component tolerances and a reduced chance of chatter on medium‑duty turning operations.

Shop-floor benefits: repeatability, compatibility and lower downtime

As an indexable insert produced for industrial turning, this component is compatible with standard triangle insert toolholders and supports quick indexation for minimal machine downtime. The MM4 chipbreaker promotes shorter, more manageable chips that simplify automatic chip evacuation and reduce handling effort. Because the grade is optimised for tough alloys and rostfreier Stahl, the insert contributes to predictable wear patterns and fewer disruptive regrinds, which supports higher overall equipment effectiveness (OEE). The net result for production teams is fewer process interruptions, a clearer maintenance schedule, and improved batch consistency without complex process adjustments.

Contact Metav Werkzeuge for a cutting‑edge evaluation and application recommendation on Walter Tools inserts; technical consultants can advise on holder compatibility and sample allocation

Technical data

• Article number: TCMT16T304-MM4-WSM20S-WALTER
• Product designation: TCMT16T304-MM4 WSM20S
• Brand: Walter Tools

Facts

• Insert size: 16
• Corner radius: 0.4 mm
• Clearance angle: 7°
• Thickness: T3
• Tolerance class: M

Special features

• Series: Tiger·tec Silver
• Grade: WSM20S
• Chipbreaker: MM4
• Shape: Triangle 60°
• Coating: Tiger·tec Silver-coated carbide
• Material groups: S / M
• Suitable application: rostfreier Stahl

FAQ

What materials is this insert suitable for?
The TCMT16T304-MM4 WSM20S insert is specified for rostfreier Stahl and heat‑resistant superalloys (ISO groups M and S), offering improved thermal stability on these materials.

How does the MM4 chipbreaker affect machining?
The MM4 chipbreaker on this Walter Tools insert produces short, controllable chips, which helps to improve chip evacuation, surface finish, and process reliability during turning operations.

How many cutting edges are available per insert?
The triangular 60° geometry provides three usable cutting edges per insert, increasing economy through multiple indexations.

Which series and coating technology does the grade belong to?
This insert is part of the Tiger·tec Silver series; the coated‑carbide grade WSM20S is formulated for wear resistance and thermal stability in demanding applications.

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