TNMG220412-RM5 WMP20S RM5 Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance, reliable chip control and a geometry optimised for stainless-steel turning to keep production consistent and efficient; order inserts or consult Metav Werkzeuge for application advice.

TNMG220412-RM5 WMP20S – Indexable turning insert for stainless steels (Walter Tools)

TNMG220412-RM5 WMP20S is an indexable insert engineered for medium to robust stainless-steel turning applications, offering a balance of edge stability and predictable chip formation.

• Tiger·tec Silver coated carbide for durability
• Optimised RM5 chipbreaker for secure chip control
• Triangular 60° shape with 1.2 mm corner radius
• Suitable for machining stainless steel (ISO M)

Stable cutting performance for demanding stainless-steel work

The TNMG220412-RM5 WMP20S insert combines a Tiger·tec Silver coating with a coated carbide substrate to resist abrasive wear and reduce adhesion when machining stainless steels. The coating technology supports a stable cutting edge under the elevated temperatures typical of these alloys, which helps to lower the risk of built-up edge and maintain surface finish. In practical terms, this means fewer interruptions for edge changes and more predictable component quality during continuous production runs.

Geometry designed for reliable chip control and insert life

With an RM5 chipbreaker and a 60° triangular form, the geometry provides controlled chip formation and reliable evacuation across a range of turning conditions. The 1.2 mm corner radius increases edge strength for interrupted cuts and reduces edge chipping during roughing passes. The negative rake (0°) contribution to cutting forces enhances robustness, so the insert performs consistently in medium to heavier cuts while helping to protect the toolholder and workpiece from vibration-induced issues.

Shop-floor benefits: consistency, indexability and process safety

The triangular plate offers multiple usable edges per insert, supporting economical indexability and reduced tooling downtime. The combination of the Tiger·tec Silver grade and RM5 chip control yields consistent part finish and repeatable cycle times, which are crucial for process planning and throughput. For cell or line production, the insert’s predictability in stainless-steel machining contributes to overall process safety and simplified parameter setting, making tool selection and commissioning faster for operators and engineers alike.

For tailored advice on Walter Tools inserts and to verify suitability for specific stainless-steel grades, contact Metav Werkzeuge via info@metav-werkzeuge.com or call +49 2822 7131930 to discuss application parameters and stock availability

Technical Data

• SKU: TNMG220412-RM5-WMP20S-WALTER
• Designation: TNMG220412-RM5 WMP20S
• Product type: Turning insert
• Manufacturer: Walter Tools

Facts

• Corner radius: 1.2 mm
• Shape: Triangle 60°
• Free cutting angle: 0° (negative)
• Insert size: 22
• Thickness code: 04

Special features

• Grade: WMP20S (Tiger·tec Silver)
• Chipbreaker: RM5
• Coating: Tiger·tec Silver (coated carbide)
• Suitable for: stainless steels (ISO M)
• Execution code: G

FAQ

What materials is this insert intended for?
The TNMG220412-RM5 WMP20S insert from Walter Tools is specified for stainless steels (ISO M) and supports medium to robust machining conditions.

How does the RM5 chipbreaker affect machining?
The RM5 chipbreaker on the TNMG220412-RM5 WMP20S promotes secure chip control and consistent chip form, improving process stability and reducing risk of chip entanglement.

What are the advantages of the Tiger·tec Silver grade?
Tiger·tec Silver on the TNMG220412-RM5 WMP20S enhances wear resistance and heat management, contributing to longer edge life and steady surface quality in turning operations.

Can the triangular shape be indexed for multiple edges?
Yes, the triangular 60° geometry of this Walter Tools insert allows multiple indexings to use several cutting edges, improving tool economy and reducing changeover frequency.

Is the corner radius suitable for semi-finishing operations?
The 1.2 mm corner radius on the TNMG220412-RM5 WMP20S provides a robust edge for semi-finishing and roughing, offering a balance between strength and achievable surface finish.

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

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