WNMG080408-MU5 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the MU5 chipbreaker to secure stable chip formation and consistent performance in stainless steel turning; the robust 0.8 mm corner radius and trigon geometry deliver reliable edge strength and process security. Order directly via Metav Werkzeuge or contact the technical advisers for application support.

WNMG080408-MU5 WMP20S — Trigon 80° turning insert for stainless steel, Tiger·tec Silver (Walter Tools)

A WNMG080408-MU5 WMP20S trigon 80° turning insert engineered for secure, repeatable machining of stainless steels under medium to robust cutting conditions

• Tiger·tec Silver coated carbide
• Optimised MU5 chipbreaker
• 0.8 mm corner radius for strength
• Suited for stainless steel machining

Increased process reliability through advanced coating and grade

The combination of the Tiger·tec Silver coating with the WMP20S grade offers enhanced wear resistance and thermal stability for machining stainless steel. Coated carbide reduces edge degradation and supports longer tool life compared with uncoated grades. For production environments where repeatability matters, the insert’s engineered surface treatment results in more consistent cutting forces and improved tool-change intervals, which in turn supports predictable machining cycles and reduced downtime.

Stable chip control and robust geometry for heavy use

The dedicated MU5 chipbreaker promotes reliable chip formation when facing the typical toughness and built-up-edge tendencies of stainless steels. Combined with the Trigon 80° form and a 0.8 mm corner radius, the geometry increases cutting-edge stability and resistance to chipping. The negative 0° (negative) relief contributes to a sturdy cutting edge that withstands interrupted cuts and heavier depths of cut, making the insert suitable for medium to more robust finishing and semi-finishing operations.

Practical benefits for shop-floor applications

Using a purpose-designed insert such as this reduces machining variability: the WMP20S grade is tuned for the thermal and adhesive behaviour of stainless materials, enabling safer chip evacuation and maintained surface quality. Because the insert is indexable and conforms to standard WNMG dimensions, it integrates smoothly into existing toolholders and turning systems, simplifying inventory management. The result is improved throughput and reduced tool-change frequency for batch and continuous processes.

Quick assessment and reliable choice for stainless turning

For workshops seeking a balance of durability and economy, this insert delivers measurable advantages: better edge life due to the coating, predictable chip behaviour via the chipbreaker design, and mechanical robustness from the trigon form and corner radius. When paired with a suitable holder and cutting data adapted for stainless steel, the insert supports consistent surface finishes and process security across repeated production cycles.

For application advice or a tailored recommendation from Metav Werkzeuge, contact the specialists at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability and cutting parameters for specific stainless steel grades

Technical data

• Article number: WNMG080408-MU5-WMP20S-WALTER
• Designation: WNMG080408-MU5 WMP20S
• Series: Tiger-tec Silver

Core dimensions

• Size: 08
• Thickness: 4.0 mm
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Tolerance class: M

Features

• Coating: Tiger·tec Silver
• Grade: WMP20S
• Material: coated carbide
• Chipbreaker: MU5
• Form: Trigon 80°
• Application: stainless steel machining
• Execution: G
• Manufacturer: Walter Tools

FAQ

Is this insert suitable for stainless steel?
The WNMG080408-MU5 WMP20S insert from Walter Tools is specified for stainless steel and is designed to handle the material’s tendency to work-harden and form built-up edge under medium to robust conditions.

What does the MU5 chipbreaker do?
The MU5 chipbreaker on the Walter Tools insert promotes controlled chip formation and evacuation when turning stainless steels, improving process stability and reducing the risk of long, stringy chips.

How does the Tiger·tec Silver coating help in production?
The Tiger·tec Silver coating increases wear resistance and thermal stability of the cutting edge, which helps maintain tool life and consistent cutting performance in repetitive stainless-steel turning tasks.

Why is the 0.8 mm corner radius relevant?
A 0.8 mm corner radius strengthens the cutting edge and improves resistance to chipping, making the insert more tolerant of higher cutting forces and intermittent cutting conditions.

Can this insert be used in existing WNMG toolholders?
The insert follows standard WNMG designation and fits compatible toolholders for trigon inserts; toolholder selection and cutting parameters should be matched to the intended stainless-steel grade and operation.

Die Walter AG (brand: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik Group. Protected trademarks and trade names are the property of their respective owners. Brand names and protected designations are mentioned for explanatory purposes only; there is no affiliation between our company and the named brands. The offered article is an original, factory-new product of the manufacturer.