CNMG120412-MU5 WMP20S MU5 Wendeplatten - Walter Tools

Take advantage of high process security and stable chip control together with the Tiger·tec Silver coating and the WMP20S grade for reliable turning of stainless steel; order directly via Metav Werkzeuge or consult our specialists for process-matched recommendations.

CNMG120412-MU5 WMP20S Indexable turning insert, Tiger·tec Silver for stainless steel — Walter Tools

CNMG120412-MU5 WMP20S is an indexable turning insert designed for medium to robust stainless steel turning applications, combining a coated carbide grade with a MU5 chipbreaker and an 80° rhombic geometry.

• Tiger·tec Silver coated grade WMP20S
• Optimised MU5 chipbreaker geometry
• Rhombic 80° insert, 1.2 mm corner radius
• 0° negative rake for stable cutting

Predictable performance in stainless steel machining

The CNMG120412-MU5 WMP20S insert is engineered to manage the specific challenges of stainless steel: work hardening tendency, tough material fibres and elevated cutting temperatures. The coated WMP20S grade, part of the Tiger·tec Silver series, supports a stable cutting edge and consistent chip formation, reducing rework and downtime. These material- and coating-driven advantages translate into improved process reliability and predictable tool life in serial production.

Lower set‑up effort and consistent edge life

A combination of MU5 chipbreaker geometry and a 0° negative rake promotes controlled chip flow and reduced built‑up edge formation under varying cutting conditions. The rhombic 80° shape with a 1.2 mm corner radius provides robust edge support for medium to heavy cuts while still enabling fine finish passes. This geometry reduces the need for frequent tool changes, supporting continuous production and fewer machine interruptions.

Coating and grade explained for practical benefits

The Tiger·tec Silver coating technology offers heat and wear resistance suited to the thermal load commonly encountered when machining stainless alloys. In practical terms, the coated carbide grade improves abrasive wear resistance and helps to maintain a sharper cutting edge over more cycles. For workshops upgrading from conventional grades, this insert delivers measurable gains in productivity and surface integrity without complex process alterations.

Application guidance and process integration

The insert's designation, sheet geometry and chipbreaker make it particularly effective for longitudinal turning and light profiling of austenitic and other stainless steels. Recommended uses include general turning and finishing where stable chip control and repeatable surface quality are priorities. For process optimisation, match feed and cutting speed to the alloy and rigidity of the set‑up; Metav Werkzeuge consultants can advise on cutting data tailored to the specific stainless grade and machine capability.

Contact Metav Werkzeuge to discuss application-specific cutting data and secure supply of Walter Tools CNMG120412‑MU5 WMP20S inserts close to production needs

Technical Data

• Article number: CNMG120412-MU5-WMP20S-WALTER
• Product type: Indexable turning insert
• Grade: WMP20S
• Series: Tiger·tec Silver
• Manufacturer: Walter Tools

Core data

• Insert size (inscribed circle): 12
• Thickness designation: 04
• Corner radius: 1.2 mm
• Relief/freerake angle: 0° (negative)
• Geometry: Rhombic 80°
• Chipbreaker: MU5
• Tolerance class: M

Materials / Special features

• Coated carbide grade
• Optimised chip control for stainless steel
• Suitable material group: stainless steel
• Robust edge for medium to heavy cutting conditions
• Designed for stable chip formation and reduced built‑up edge

FAQ

What materials is this insert suitable for?
The CNMG120412‑MU5 WMP20S insert is specified for stainless steel machining and is designed to handle the toughness and heat sensitivity typical of that material group.

How does the MU5 chipbreaker affect cutting?
The MU5 chipbreaker on the Walter Tools insert promotes controlled chip formation and evacuation, improving process stability and reducing the risk of built‑up edge when turning stainless steels.

What advantage does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating increases wear resistance and thermal stability, which helps the insert maintain a sharp cutting edge for longer tool life in demanding stainless steel operations.

Is this insert suitable for finishing passes?
Yes, the rhombic 80° geometry with a 1.2 mm corner radius provides sufficient edge strength for finishing and semi‑finishing operations while supporting repeatable surface quality.

Can the CNMG120412‑MU5 WMP20S be used in automated production?
The insert's grade and geometry deliver consistent performance and predictable wear, making it appropriate for automated and serial production environments where process repeatability is essential.

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

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