SCMT120412-RM4 WMP20S RM4 Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, a robust RM4 chipbreaker and a 1.2 mm corner radius for reliable stainless steel turning and boring. Order the SCMT120412-RM4 WMP20S directly via Metav Werkzeuge or consult our team for application support.

SCMT120412-RM4 WMP20S – square 90° turning and drilling indexable insert by Walter Tools (Tiger·tec Silver, for stainless steel)

SCMT120412-RM4 WMP20S is a square 90° indexable insert designed for turning and drilling operations in stainless steels under moderate to robust cutting conditions.

• Tiger·tec Silver coating for increased wear resistance
• RM4 chipbreaker for secure chip control
• 1.2 mm corner radius for edge strength
• Square 90° form for versatile clamping

Consistent performance on stainless steels

The insert is produced in the WMP20S grade and benefits from the Tiger·tec Silver coating technology, specifically developed to improve wear resistance and to promote stable cutting in tough materials. This combination reduces the risk of edge build-up and supports a more predictable tool life when machining stainless steel (ISO group M). The result is fewer interruptions for tool changes and a steadier production output, which directly supports efficiency targets on batch and continuous production runs.

Geometry tuned for repeatable results

A square 90° plate shape combined with a 1.2 mm corner radius and a 7° clearance angle provides a robust cutting edge that tolerates moderate interruptions and delivers a consistent machined surface. The RM4 chipbreaker is designed to control chip form during turning and boring, which simplifies process set-up and reduces the likelihood of rework. These geometric choices offer a balance between edge strength and finish quality, making the insert suitable for applications where both tool life and dimensional reliability matter.

Productivity advantages for machine shops

The SCMT120412-RM4 WMP20S supports higher machine uptime through steady wear behaviour and predictable chip evacuation. The coated carbide grade is engineered for a broad range of stainless-steel applications, allowing fewer insert variants to cover multiple tasks. This consolidation lowers inventory complexity and contributes to an improved cost-per-component ratio in production environments. The insert’s design also aids repeatable set-up, shortening preparatory times between jobs.

Practical compatibility and handling

The insert’s designation reflects common ISO-style dimensions and mounting practices, so it is compatible with holders made for square 90° turning and boring inserts in the same size class. The compact plate size and standard hole/seat geometry (SCMT120412-RM4 format) allow quick indexing and replacement without extensive rework of tool assemblies. For operations requiring secure chip control and a robust edge for stainless steel turning, this insert is a practical choice that integrates readily into existing tooling systems.

For application advice, availability or to discuss suitable holders for Walter Tools’ Tiger·tec Silver grade, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 to arrange a technical consultation

Technical data

• Article number: SCMT120412-RM4-WMP20S-WALTER
• Designation: SCMT120412-RM4 WMP20S
• Brand: Walter Tools
• Series: Tiger·tec Silver
• Grade: WMP20S

Core data

• Shape: Square 90°
• Corner radius: 1.2 mm
• Clearance angle: 7°
• Insert size: 12
• Thickness code: 04
• Chipbreaker: RM4

Special features

• Coating technology: Tiger·tec Silver
• Intended material group: stainless steel (ISO M)
• Product type: drill/boring and turning indexable insert
• Execution: T (format code)
• Tolerance class: M

FAQ

What materials is this insert suitable for?
The SCMT120412-RM4 WMP20S is specified for stainless steel (ISO group M) applications and is engineered to handle the toughness and heat characteristics typical of these alloys.

How does the RM4 chipbreaker influence machining?
The RM4 chipbreaker on the SCMT120412-RM4 WMP20S promotes secure chip formation and controlled evacuation, improving process stability during turning and boring in stainless steels.

What benefits does the Tiger·tec Silver coating provide?
Tiger·tec Silver increases wear resistance and edge life for the WMP20S grade, contributing to more consistent cutting performance and reduced insert changes in production.

Is the insert compatible with standard SCMT toolholders?
Yes. The SCMT120412-RM4 format aligns with standard holders for square 90° inserts of this size class, facilitating quick indexing and replacement.

Why choose a 1.2 mm corner radius for stainless steel?
A 1.2 mm corner radius delivers enhanced edge strength and better resistance to chipping, which is beneficial when machining materials that tend to work-harden, such as many stainless steels.

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

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