WNMG080412-MM5 WMP20S WMP20S Wendeplatten - Walter Tools

Benefit from the Tiger·tec Silver coating and the MM5 chipbreaker for secure chip formation and extended edge life when machining stainless steels; the Trigon 80° geometry and 1.2 mm corner radius add robustness for medium to robust turning operations. Order genuine inserts via Metav Werkzeuge or consult our specialists for cutting-data recommendations.

WNMG080412-MM5 WMP20S Trigon 80° turning insert — Tiger·tec Silver, Walter Tools

A WNMG080412-MM5 WMP20S turning insert designed for productive and reliable machining of stainless steels in medium to robust cutting conditions

• Tiger·tec Silver coating for stable cutting
• Optimised MM5 chipbreaker for stainless steel
• Trigon 80° geometry with 1.2 mm radius

Consistent cutting performance with coated carbide technology

The combination of Tiger·tec Silver and a coated carbide substrate delivers stable chip control and predictable wear behaviour when machining stainless steels (ISO group M). The advanced coating reduces adhesive wear and supports longer periods between insert changes, which contributes directly to higher component throughput and lower process variability. The MM5 chipbreaker is tailored to the demands of tough, ductile stainless materials and promotes short, controllable chips that ease evacuation and reduce the risk of built-up edge, improving repeatability across production batches.

Robust geometry for secure heavy cuts and access in tight features

The Trigon 80° form and negative rake 0° establish a strong cutting edge that tolerates interrupted cuts and heavy radial loads, while the 1.2 mm corner radius increases edge strength for longer service life. This geometry balances stability and versatility: it supports roughing passes with confidence and maintains a sufficiently sharp profile for semi-finish steps. The insert’s format is compatible with standard WNMG-style toolholders, allowing seamless integration into existing tool setups without costly adapter changes.

Practical shop-floor benefits and process reliability

Adopting this indexable insert results in measurable operational gains: fewer insert exchanges, reduced downtime for regrinding, and more consistent surface quality on corrosion-resistant alloys. The WMP20S grade is formulated specifically for rostfreie Stähle and similar alloys, offering a compromise between toughness and wear resistance to handle variable stainless compositions and cutting conditions. For process engineers, the result is a more predictable machining window and straightforward documentation of tool life for production planning.

Contact Metav Werkzeuge today to specify the appropriate WNMG080412-MM5 WMP20S insert for the intended stainless steel grade and cutting strategy — email info@metav-werkzeuge.com or call +49 2822 7131930 to arrange technical consultation and delivery through Metav Werkzeuge

Technical data

• Article number: WNMG080412-MM5-WMP20S-WALTER
• Name: Drehwendeschneidplatte WNMG080412-MM5 WMP20S Walter Tools
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver
• Grade: WMP20S

Facts

• Corner radius: 1.2 mm
• Relief angle: 0° (negative)
• Insert shape: Trigon 80°
• Size code: 08
• Thickness code: 04

Special features

• Coating / technology: Tiger·tec Silver
• Chipbreaker: MM5
• Application: stainless steels (ISO group M)
• Cutting grade: WMP20S
• Manufacturer brand: Walter Tools

FAQ

What materials is this insert designed for? The WNMG080412-MM5 WMP20S turning insert is designed primarily for stainless steels (ISO group M) and performs well under medium to robust cutting conditions.

How does the Tiger·tec Silver coating improve performance? The Tiger·tec Silver coating on the WNMG080412-MM5 WMP20S reduces adhesive wear and supports a more stable cutting edge, extending tool life and improving surface quality when machining stainless steels.

What role does the MM5 chipbreaker play in chip control? The MM5 chipbreaker promotes short, controllable chips suitable for ductile materials like stainless steels, helping to avoid long, tangled chips and easing chip evacuation at the tool tip.

Is this insert suitable for roughing and finishing operations? The Trigon 80° form with 1.2 mm corner radius and negative rake 0° provides the robustness expected for roughing and strong semi-finishing performance; for high-precision finishing, a smaller corner radius or a finishing-specific grade may be preferable.

Will this insert fit standard WNMG toolholders? Yes, the WNMG080412-MM5 WMP20S corresponds to the WNMG insert family and is compatible with standard WNMG-style toolholders, allowing straightforward replacement and setup.

The Walter AG (brand appearance: Walter Tools), headquartered in Tübingen, is among the world's leading manufacturers of precision metal‑cutting tools. Protected trademarks and product names are the property of their respective owners. Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen