DCMT11T308-RM4 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of a coated carbide grade and a proven RM4 chipbreaker to achieve stable chip formation and consistent edge life when machining stainless steels; order the insert directly via Metav Werkzeuge or consult the application specialists for process integration.

DCMT11T308-RM4 WMP20S indexable turning insert, Rhombus 55° — for stainless steel, Walter Tools

A DCMT11T308-RM4 WMP20S indexable turning insert designed for machining stainless steel in medium to robust turning operations, combining Tiger·tec Silver coating technology with a purpose-built RM4 chipbreaker for secure chip control.

Tiger·tec Silver coated carbide grade WMP20S
Optimised RM4 chipbreaker for stable chips
Rhombic 55° geometry for versatile turning
0.8 mm corner radius for robust edge life

Reliable chip control for demanding stainless-steel turning

The combination of the RM4 chipbreaker and the Tiger·tec Silver coating offers a focused solution for the typical challenges of machining stainless steel: tendency to form long, stringy chips, build-up on the edge and high thermal loading. The chipbreaker geometry is engineered to divide and eject chips efficiently, reducing the risk of re-cutting and tool damage. As a result, cycle times remain stable and tool changes are less frequent, which supports continuous production runs. Practical benefits include improved process security and a more consistent surface condition on the workpiece, without altering existing machine or clamping setups.

Geometry and edge strength for consistent tool life

The Rhombic 55° insert form and a 0.8 mm corner radius create a robust cutting edge suited to medium and heavier depth-of-cut applications. The 55° point gives good access for external and certain internal turning operations while balancing cutting forces and edge strength. The indicated 7° relief angle helps avoid rubbing on the flank face and supports reliable contact conditions under variable cutting loads. Together, these geometric choices reduce the likelihood of premature edge failure and enable steady wear behaviour, which simplifies process planning and spare-part management.

Material grade and production advantages in series use

The WMP20S grade, produced within the Tiger·tec Silver series, is a coated carbide designed specifically for ISO group M (stainless steels). This makes the insert particularly suitable where a combination of stable chip formation and robust cutting edges is required. In practice, shops find that inserts of this specification maintain dimensional consistency over runs, allowing longer tool life per index and fewer interruptions. For workshops aiming to increase throughput without compromising surface quality, the insert supports dependable repeatability and ease of integration into established tool holders and turning programmes.

For process-secure machining of stainless steel with Walter Tools’ DCMT11T308-RM4 WMP20S, contact Metav Werkzeuge to discuss supply and application advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• SKU: DCMT11T308-RM4-WMP20S-WALTER
• Designation: DCMT11T308-RM4 WMP20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Numbers / Core technical data

• Relief angle: 7°
• Corner radius: 0.8 mm
• Geometry: Rhombus 55°
• Insert size: 11 mm
• Thickness: T3
• Chipbreaker: RM4
• Tolerance class: M

Design / Special features

• Coating: Tiger·tec Silver
• Grade: WMP20S (coated carbide)
• Application: stainless steel (ISO group M)
• Robust edge for medium to heavy conditions
• Suitable for turning operations

FAQ

What materials is this insert intended for?
The DCMT11T308-RM4 WMP20S is specified for ISO group M and is optimised for machining stainless steel in medium to robust conditions.

Which chipbreaker does the insert use and why does it matter?
This insert features the RM4 chipbreaker; it improves chip control and reduces the risk of build-up and re-cutting during stainless-steel turning.

What are the key geometric specifications of the insert?
The insert is a rhombic 55° form with a 0.8 mm corner radius and a 7° relief angle, designed to balance cutting strength and accessibility.

Is the insert part of a coated series and what is the benefit?
Yes — the insert belongs to the Tiger·tec Silver series; the coating supports thermal stability, wear resistance and reliable performance in stainless-steel applications.

Walter Tools — The Walter AG (brand appearance: Walter Tools) is part of the Sandvik Group. Protected trademarks and product names are the property of their respective owners. The mentioned brand is cited solely for explanation; there is no affiliation between Metav Werkzeuge and the trademark owners.