TNMG220408-RM5 WMP20S RM5 Wendeplatten - Walter Tools

Take advantage of the combination of durable coated carbide, proven chip control and a robust corner radius for consistent performance in stainless-steel turning applications; order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

TNMG220408-RM5 WMP20S indexable turning insert — Tiger·tec Silver for stainless steel by Walter Tools

A TNMG220408-RM5 WMP20S indexable turning insert designed for machining stainless steel under medium to robust cutting conditions, combining a Tiger·tec Silver coating with an RM5 chipbreaker for stable cutting performance

• Tiger·tec Silver coated grade WMP20S
• Optimised RM5 chipbreaker for stainless steels
• Triangle 60° shape with 0.8 mm corner radius

Stable chip formation for reliable production

The combination of the Tiger·tec Silver coating and the WMP20S carbide grade produces stable chip formation when turning stainless steels, which are prone to built-up edge and material adhesion. This results in reduced risk of unexpected tool failure and more consistent cycle times. The coated substrate supports higher thermal resistance than uncoated grades, so cutting edges maintain geometry for longer during interrupted or continuous cuts. As a result, component quality is more reproducible and machine uptime improves.

Geometry engineered for surface quality and edge strength

The triangular 60° form paired with a 0.8 mm corner radius balances finish and edge robustness. The negative 0° (negative) relief angle increases corner strength and is suited to heavier engagement or interrupted cuts, while the RM5 chipbreaker promotes controlled chip segmentation to protect both workpiece surface and tool edge. This geometry simplifies insert indexing and repeatability in clamping, giving repeatable positional accuracy and reliable surface finish without sacrificing edge stability.

Productivity gains through predictable tool life

A coated carbide construction and the Tiger·tec Silver technology provide enhanced wear resistance and process security, meaning fewer insert changes and lower tool-handling time. The grade is specified for stainless steel applications and is optimised for mid to demanding conditions, enabling longer tool life under practical shop-floor conditions. Together these characteristics support higher productivity, reduced process variation and a more economical machining cycle when integrated into standard TNMG toolholders.

Contact Metav Werkzeuge for application-specific recommendations and to purchase original Walter Tools inserts — eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical data

• Article number: TNMG220408-RM5-WMP20S-WALTER
• Designation: TNMG220408-RM5 WMP20S
• Product type: Indexable turning insert (Drehwendeschneidplatte)
• Brand: Walter Tools
• Series: Tiger·tec Silver
• Grade: WMP20S

Facts

• Insert size / inscribed circle: 22
• Thickness: 04
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Shape: Triangle 60°
• Chipbreaker: RM5
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Substrate: coated carbide
• Grade suited for: stainless steel (M)
• Sort description: coated carbide grade for medium to robust conditions
• Application focus: turning of stainless-steel components

FAQ

Which materials is this insert designed to machine?

The TNMG220408-RM5 WMP20S by Walter Tools is specified for stainless steel (ISO group M) and performs under medium to robust cutting conditions.

What effect does the 0.8 mm corner radius have on performance?

A 0.8 mm corner radius increases edge strength for heavier engagement and helps maintain surface finish, while still allowing reasonable cutting forces for typical turning operations with the RM5 chipbreaker.

How does the RM5 chipbreaker influence chip control?

The RM5 chipbreaker promotes controlled segmentation of chips when machining tough, adhesive stainless steels, aiding evacuation and reducing the likelihood of built-up edge and surface damage.

Is the insert compatible with standard TNMG toolholders?

Yes — the ISO designation TNMG220408 corresponds to standard TNMG indexable turning insert holders, enabling straightforward integration into existing tool systems.

Does the Tiger·tec Silver coating improve tool life?

The Tiger·tec Silver coating enhances thermal and wear resistance compared with uncoated substrates, supporting improved tool life and process security in demanding stainless-steel turning tasks.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected product names are mentioned for explanation only. There is no connection between our company and the named brands. The offered article is original, brand-new goods of the manufacturer (Walter Tools).