SCMT120412-RM4 WSM20S RM4 Wendeplatten - Walter Tools

Benefit from Walter Tools' proven Tiger‑tec Silver coating and the RM4 chipbreaker for secure chip control and extended tool life when machining demanding materials; the compact square 90° geometry with a 1.2 mm corner radius ensures reproducible surface quality and robust edge stability. Order or request advice via Metav Werkzeuge for a seamless production setup.

SCMT120412‑RM4 WSM20S indexable insert (square 90°, Tiger‑tec Silver) — Walter Tools

The SCMT120412‑RM4 WSM20S is a square 90° indexable turning and boring insert optimised for machining rostfreier Stahl and heat‑resistant superalloys in demanding industrial applications.

• Tiger‑tec Silver coated grade WSM20S
• Optimised RM4 chipbreaker for stable chips
• 7° approach angle for secure engagement
• Square 90° insert with 1.2 mm corner radius

Reliable cutting performance on rostfreier Stahl and superalloys

The combination of the Tiger‑tec Silver coating and the WSM20S grade offers high thermal stability and improved wear resistance when machining rostfreier Stahl or nickel‑based alloys. The coating reduces tool‑workpiece adhesion and supports secure chip formation under elevated temperatures; the result is a more consistent cutting edge and fewer unexpected interruptions. The built‑in RM4 chipbreaker helps to control chip flow and reduce the risk of built‑up edge, which translates into longer tooling intervals and fewer changeovers on the shop floor.

Geometry that delivers repeatable surface quality and edge life

Designed with a 7° relief/approach angle and a 1.2 mm corner radius, the insert provides a balance between strength and finish: the larger corner radius distributes cutting forces to improve edge stability, while the specified approach angle reduces chatter during plunging and facing. The square 90° shape and 12 mm size give multiple indexable cutting edges per insert, aiding process economy and simple tool management. These geometric choices support predictable tool behaviour, making cycle times and surface finish more reproducible across production batches.

Ready for integration into standard toolholders and production workflows

Identified by the ISO designation SCMT120412‑RM4, this insert fits conventional clamping systems and is straightforward to implement in existing turning and boring operations. The combination of a robust grade and a controlled chipbreaker makes it suitable for serial production where downtime minimisation and edge reliability are priorities. For customers seeking to optimise cutting parameters or confirm holder compatibility, Walter Tools inserts are supported by established process knowledge and can be specified to match machining strategies for rostfreier Stahl and high‑temperature alloys.

For tailored recommendations on cutting data or to arrange supply of Walter Tools inserts, contact Metav Werkzeuge by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930 to receive expert application advice and rapid fulfilment.

Technical Data

• SKU: SCMT120412-RM4-WSM20S-WALTER
• Article number: SCMT120412-RM4
• Manufacturer: Walter Tools
• Product type: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte

Facts

• Insert size: 12
• Corner radius: 1.2 mm
• Relief/approach angle: 7°
• Plate thickness: 04
• Tolerance class: M

Special features

• Grade: WSM20S
• Series / coating: Tiger‑tec Silver
• Chipbreaker: RM4
• Plate form: Quadrat 90°
• Material designation: S / M
• Suitable for rostfreier Stahl

FAQ

What materials is the insert suitable for?
The SCMT120412‑RM4 WSM20S is specified for rostfreier Stahl and heat‑resistant superalloys (ISO groups M and S) and is optimised to maintain edge stability under the high temperatures typical of those materials.

How does the RM4 chipbreaker affect machining?
The RM4 chipbreaker promotes short, controllable chips and reduces the chance of built‑up edge, improving surface finish and making chip evacuation more reliable when using the SCMT120412‑RM4 WSM20S insert.

Is this insert compatible with standard toolholders?
Yes; the ISO designation SCMT120412‑RM4 indicates compatibility with conventional indexable turning and boring toolholders designed for square 90° inserts of this size.

What are the intended benefits of the Tiger‑tec Silver coating?
The Tiger‑tec Silver coating on the WSM20S grade enhances thermal resistance and wear performance, helping to extend tool life and maintain consistent cutting behaviour during serial machining of rostfreier Stahl.

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

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