WNMG060412-MM5 WSM20S WSM20S Wendeplatten - Walter Tools

Benefit from a combination of robust edge strength, targeted chip control and the thermal resistance of the Tiger‑tec Silver grade; this results in dependable performance when machining demanding materials. Order the insert through Metav Werkzeuge or request tailored cutting data from their consultants for seamless integration into production.

WNMG060412‑MM5 WSM20S turning insert — Tiger‑tec Silver, Trigon 80° (0° negative), Walter Tools

The WNMG060412‑MM5 WSM20S is a trigon turning insert designed for heavy machining of rostfreier Stahl and heat‑resistant superalloys, offering a balanced combination of wear resistance and secure chip formation for stable process results.

• Tiger‑tec Silver coated carbide
• Optimised chip control MM5 geometry
• Trigon 80° plate form, robust clamping
• 1.2 mm corner radius for stable cutting edge

Increased process stability for demanding materials

The Tiger‑tec Silver grade WSM20S combines a coated carbide substrate with a coating system optimised for heat resistance and wear protection, which directly benefits machining of rostfreier Stahl and high‑temperature alloys. The coating reduces flank wear and helps prevent built‑up edge, so the toolholder experiences fewer vibrations and more uniform cutting forces. As a result, component tolerances remain consistent over longer production runs, supporting higher first‑pass yields and fewer in‑process reworks. The trigon plate form contributes to reliable clamping and edge support under elevated cutting loads.

Reliable chip control and productive cutting behaviour

The MM5 chipbreaker geometry is engineered to promote controlled chip formation in adhesive and tough materials where long, stringy chips can interrupt machining. With this chip control, coolant interaction and swarf handling become more predictable, helping to maintain cycle times and reduce manual chip clearing. The insert’s 1.2 mm corner radius delivers a compromise between edge strength and surface finish, enabling moderate to heavy cuts while still producing acceptable surface quality. In practical terms, the combination of chip geometry and grade supports continuous, productive turning operations with fewer unscheduled tool changes.

Design features that support robust machining routines

A 0° (negative) free angle denotes a neutral to slightly negative rake, which increases the mechanical strength of the cutting edge and suits interrupted cuts and higher feed rates. The compact 06 plate size and 04 thickness give a stable contact area in the pocket, while the trigon 80° form is chosen for its stiffness and resistance to deflection under load. For shops moving from general‑purpose grades, this insert offers an accessible step to handle tougher workpiece materials without extensive process requalification. When setting cutting parameters, favour conservative depth‑of‑cut increases and verify chip shape before ramping speeds to exploit the grade and geometry safely.

Practical benefits and machining recommendations

Use this insert where secure chip evacuation and edge stability are priorities—typical applications include semi‑finishing and rough turning of rostfreier Stahl and heat‑resistant alloys. The coated carbide and MM5 geometry reduce the tendency for built‑up edge formation typical of these materials, supporting longer tool life and more predictable tool‑change intervals. For best results, combine the insert with a rigid toolholder, appropriate coolant application and incremental parameter adjustments. Routine monitoring of surface finish and tool flank wear provides an early indicator for optimising cutting data and extending insert performance.

Contact Metav Werkzeuge for customised application advice and cutting parameters for the WNMG060412‑MM5 WSM20S from Walter Tools

Technical data

• Article number: WNMG060412‑MM5‑WSM20S‑WALTER
• Description: Drehwendeschneidplatte WNMG060412‑MM5 WSM20S Walter Tools
• Manufacturer: Walter Tools
• Product type: turning insert
• Series: Tiger‑tec Silver
• Grade: WSM20S
• ISO designation: WNMG060412‑MM5 WSM20S
• Plate form: Trigon 80°
• Free angle: 0° (negative)
• Corner radius: 1.2 mm
• Plate size: 06
• Plate thickness: 04

Numbers / Core technical data

• Corner radius: 1.2 mm
• Free angle: 0° (negative)
• Plate size: 06
• Plate thickness: 04

Special features / Applications

• Coated carbide grade: Tiger‑tec Silver WSM20S
• Chipbreaker: MM5
• Suitable for: rostfreier Stahl
• Also suitable for: heat‑resistant superalloys and titanium
• Designed for secure chip formation and stable cutting edge

FAQ

What materials is this insert intended for?
The WNMG060412‑MM5 WSM20S is intended primarily for rostfreier Stahl and is also suitable for heat‑resistant superalloys and titanium, reflecting the material groups S and M.

How does the MM5 chipbreaker affect machining?
The MM5 geometry promotes controlled chip formation and safer chip evacuation when machining adhesive or high‑toughness materials, reducing the risk of entangling swarf and unplanned interruptions.

What does 0° (negative) free angle mean in practice?
A 0° (negative) free angle indicates a neutral to slightly negative rake condition that strengthens the cutting edge and improves resistance to mechanical shock and interrupted cuts.

Which cutting applications suit this trigon insert best?
The trigon 80° shape and robust edge make the insert well suited to semi‑finishing and rough turning where rigidity and edge stability are essential.

Are there recommended toolholder or coolant practices?
Use a rigid toolholder and verify coolant direction and pressure to assist chip removal; the WSM20S grade benefits from controlled cooling and proper swarf management for sustained performance.

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

The Walter AG (brand appearance: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and forms part of the Sandvik group. Protected trademarks and trade names belong to their respective owners. The mentioned brand names and product designations are used for explanatory purposes only and there is no affiliation between our company and the named manufacturers.