SCMT09T308-RM4 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the RM4 chipbreaker for reliable machining of stainless steel; the square geometry with a 0.8 mm corner radius ensures stable clamping and consistent edge life. Order directly via Metav Werkzeuge or consult our specialists for cutting-data recommendations.

SCMT09T308-RM4 WMP20S — Square turning indexable insert, Tiger·tec Silver, Walter Tools

The SCMT09T308-RM4 WMP20S is a square 90° indexable insert engineered for drilling, boring and turning applications, optimised for medium to robust machining of stainless steel under demanding conditions.

• Tiger·tec Silver coated carbide
• RM4 chipbreaker for stable chips
• 7° clearance to reduce rubbing
• 0.8 mm corner radius for edge strength

High-performance coating for heat-prone materials

The Tiger·tec Silver coating combined with coated carbide substrate is designed to improve wear resistance and maintain a stable cutting edge when processing stainless steel, which typically generates heat and tends to work-harden. This surface treatment reduces friction at the cutting zone and supports secure chip formation, so that machining cycles remain consistent and predictable. For production environments where repeatability and process security matter, the coating technology helps to extend effective tool life and reduces unscheduled tool changes, contributing to greater overall productivity.

Geometry and chip control that protect the edge

The insert’s square 90° geometry, paired with the RM4 chipbreaker and a 7° clearance, provides an effective balance between chip control and cutting stability. The 0.8 mm corner radius increases edge strength and resistance to chipping during interrupted cuts or heavier depths of cut. The T3 thickness contributes to rigidity in the clamping pocket, reducing vibration and improving surface finish. Together, these features enable a stable machining process with fewer edge failures and more consistent surface quality on challenging stainless applications.

Productivity advantages and process reliability

Using this grade and geometry supports a more economical machining strategy: predictable flank and crater wear, steady chip flow and a robust edge reduce downtime and rework. The combination of coating and chipbreaker design delivers a lower risk of built-up edge and improved dimensional stability across production batches. For operations aiming to increase throughput without compromising quality, these characteristics translate into fewer tool changes, more consistent part conformity and a tangible improvement in overall process efficiency.

Practical guidance for integrating the insert

The insert is identified as SCMT09T308-RM4 WMP20S and is best paired with toolholders designed for square 90° inserts and secure clamping to exploit its rigidity. The grade WMP20S is specified for stainless steel in accordance with ISO group M, so select cutting parameters that account for work-hardening and heat generation typical of these alloys. If cutting-data tuning is required for a particular alloy or machine setup, Metav Werkzeuge can supply tailored recommendations and practical tips to help adapt feed and speed to maximise tool life and part quality.

For tailored advice on using Walter Tools Tiger·tec Silver inserts for stainless steel, contact Metav Werkzeuge for application-specific cutting data and recommendations on the SCMT09T308-RM4 WMP20S solution.

Technical data

• Article number / SKU: SCMT09T308-RM4-WMP20S-WALTER
• Name / designation: SCMT09T308-RM4 WMP20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Facts

• Clearance angle: 7°
• Corner radius: 0.8 mm
• Insert size: 09
• Thickness: T3
• Tolerance class: M

Special features

• Chipbreaker: RM4
• Geometry: Square 90°
• Grade: WMP20S (coated carbide)
• Suitable for: stainless steel
• Application: Drilling/boring and turning indexable insert
• Execution: T

FAQ

What materials is this insert suited for?
The SCMT09T308-RM4 WMP20S is specified for machining stainless steel (ISO group M) and is engineered to manage the heat and work-hardening tendencies of those alloys.

How does the RM4 chipbreaker affect machining performance?
The RM4 chipbreaker promotes consistent chip control and evacuation, reducing the risk of built-up edge and helping to maintain surface quality during medium to robust cutting.

What benefit does the Tiger·tec Silver coating provide?
Tiger·tec Silver enhances wear resistance and reduces friction at the cutting edge, improving edge life and process stability when machining heat-generating stainless materials.

Why is the 0.8 mm corner radius important?
A 0.8 mm corner radius increases edge strength and resistance to chipping, particularly beneficial during interrupted cuts or when higher depths of cut are required.

How can the insert be identified on the tool list?
Look for the ISO-style designation SCMT09T308-RM4 WMP20S; this includes geometry, chipbreaker and grade information to ensure correct selection.

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

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