TCMT06T104-FM4 WSM21 FM4 Wendeplatten - Walter Tools

Take advantage of the combination of WSM21 coated carbide and the FM4 chipbreaker for stable cutting-edge performance in stainless steels and heat-resistant alloys; order directly via Metav Werkzeuge or consult the technical advisers for application-specific guidance.

TCMT06T104-FM4 WSM21 – Triangular indexable insert with FM4 chipbreaker for stainless steel applications | Walter Tools

TCMT06T104-FM4 WSM21 is a coated indexable insert designed for machining demanding materials such as stainless steels and heat-resistant superalloys, offering a balance of edge stability and predictable chip control

• TCMT06T104-FM4 WSM21 by Walter Tools
• FM4 chipbreaker for controlled chip formation
• Optimised for stainless steel and superalloys
• 7° relief angle and 0.4 mm corner radius

Consistent performance where material behaviour is challenging

The combination of the WSM21 coated carbide grade and the FM4 chipbreaker delivers stable cutting-edge life when machining work-hardened or heat-resistant materials. The grade is tailored to support secure chip formation in materials that tend to work-harden, reducing the risk of built-up edge and sudden tool failure. In practice, this means fewer unscheduled tool changes and more predictable cycle times when turning rostfreier Stahl and similar alloys.

Geometry and coating that extend usable life

A triangular 60° insert shape with a 0.4 mm corner radius and a 7° relief angle provides a robust edge for interrupted cuts and roughing passes while still allowing acceptable surface finish on finishing passes. The coated carbide layer improves abrasion resistance and thermal stability at the cut face, helping to maintain a stable cutting edge under elevated temperatures typical of stainless-steel machining. The modest corner radius balances edge strength with acceptable cutting forces.

Practical advantages for shop-floor productivity

The FM4 chipbreaker is engineered for controlled chip breaking and evacuation, lowering the likelihood of entangling long chips and improving operator safety. Combined with the insert’s shape and relief, this yields smoother machining behaviour, simplified chip handling and reduced rework. For production environments seeking repeatable performance, the insert supports efficient, consistent turning cycles across short and long runs.

Choosing the right grade and integrating into tool systems

When replacing inserts or selecting new tooling, note that this grade is part of the Walter open series and is particularly suited for M and S material groups: rostfreier Stahl and heat-resistant superalloys/titanium alloys. The designation indicates compatibility with common toolholders that accept the TCMT06T104 geometry. For optimal results, match cutting data to the workpiece alloy and machine rigidity; modest depth of cut and appropriate coolant strategy often extend tool life in stainless-steel applications.

For application advice or to place an order for the TCMT06T104-FM4 WSM21 insert, contact Metav Werkzeuge for technical consultation and supply coordination via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• SKU: TCMT06T104-FM4-WSM21-WALTER
• Designation: TCMT06T104-FM4 WSM21
• Manufacturer: Walter Tools
• Product type: Indexable insert

Core specifications

• Relief angle: 7°
• Corner radius: 0.4 mm
• Insert shape: Triangle 60°
• Size: 06
• Thickness: T1
• Tolerance class: M

Special features

• Coated carbide grade WSM21
• FM4 chipbreaker
• Optimised for stainless steel and superalloys
• Series: Walter grade series – open series

FAQ

What materials is this insert suitable for?
The TCMT06T104-FM4 WSM21 insert is optimised for rostfreier Stahl (stainless steels) and heat-resistant superalloys, matching the WSM21 grade’s application range.

How does the FM4 chipbreaker improve machining?
The FM4 chipbreaker on the TCMT06T104-FM4 promotes controlled chip formation and easier chip evacuation, reducing the risk of long, entangling chips during turning operations.

Can this insert be used for finishing passes?
Yes; with its 0.4 mm corner radius and coated carbide surface, the insert can achieve acceptable surface quality in finishing, provided cutting parameters and machine rigidity are appropriate.

Which toolholders accept this geometry?
The TCMT06T104-FM4 designation corresponds to standard toolholders for triangular 60° indexable inserts; verify compatibility with the toolholder manufacturer’s catalogues.

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

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