VBMT110308-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, an optimised MM4 chipbreaker and robust geometry to secure reliable performance when machining stainless steel and high-temperature alloys. Order the insert directly via Metav Werkzeuge or contact the consultants for process recommendations.

VBMT110308-MM4 WSM20S – Indexable turning insert, Tiger·tec Silver (Walter Tools)

The VBMT110308-MM4 WSM20S is a rhombic 35° indexable turning insert from the Tiger·tec Silver series, designed for demanding machining of stainless steel and heat-resistant superalloys and titanium.

• Tiger·tec Silver coated carbide
• Optimised MM4 chipbreaker
• Rhombic 35° geometry
• Stable edge for stainless steel

Consistent cutting performance for difficult-to-machine alloys

The Tiger·tec Silver coating and the WSM20S grade provide a balance of wear resistance and thermal stability that benefits machining of stainless steel and high-temperature alloys. The coated carbide construction supports stable chip formation, reduces adhesion and helps maintain a sharp cutting edge for longer intervals, which translates into fewer insert changes and more predictable machining cycles. In practice, the enhanced thermal resistance of the grade reduces edge damage when cutting materials that generate high cutting temperatures, improving overall process consistency.

Geometry engineered for precision and surface quality

A rhombic 35° form with a corner radius of 0.8 mm and a 5° clearance angle gives a predictable cutting direction and favourable shear conditions for finishing and semi-finishing operations. The MM4 chipbreaker is tuned to separate chips reliably in stainless and heat-resistant alloys, reducing the risk of built-up edge and improving surface finish. The geometric pairing of nose radius and clearance ensures load distribution across the cutting edge, which helps to protect the insert during interrupted cuts and maintain dimensional accuracy across long production runs.

Productivity gains through process reliability

By combining a modern coating system with a robust chip control geometry, the insert supports higher cutting parameters where appropriate, offering enhanced productivity without sacrificing tool life. The design promotes repeatable edge performance, which is particularly valuable in series production where minimising variability is essential. As a Walter Tools solution within the Tiger·tec Silver family, the insert contributes to stable machining results and predictable tool-change intervals, supporting leaner workflows and reduced downtime.

Contact Metav Werkzeuge to discuss suitable cutting parameters for Walter Tools VBMT110308-MM4 WSM20S inserts and request application-specific recommendations

Technical data

• SKU: VBMT110308-MM4-WSM20S-WALTER
• Label: Drehwendeschneidplatte VBMT110308-MM4 WSM20S Walter Tools
• Product type: Drehwendeschneidplatte
• Manufacturer: Walter Tools

Facts

• Series: Tiger·tec Silver
• Grade / sort: WSM20S
• Geometry: Rhombus 35°
• Clearance angle: 5°
• Corner radius: 0.8 mm
• Insert size: 11
• Thickness: 03
• Chipbreaker: MM4
• Tolerance class: M

Special features

• Material suitability: S / M
• Application focus: stainless steel (M) and heat-resistant superalloys / titanium (S)
• Coated carbide cutting grade
• Designed for stable chip formation and reliable cutting edge

FAQ

What materials is this insert best suited for?
The VBMT110308-MM4 WSM20S insert is designed primarily for stainless steel and for heat-resistant superalloys and titanium, utilising the Tiger·tec Silver coating to improve thermal and wear resistance.

How does the MM4 chipbreaker affect machining results?
The MM4 chipbreaker on the VBMT110308-MM4 improves chip control in sticky or ductile materials, helping to avoid built-up edge and enhancing surface finish while supporting stable cutting forces.

What does the 35° rhombic geometry deliver in practice?
Rhombic 35° geometry gives a controlled cutting direction and good access for turning operations; combined with the 0.8 mm corner radius and 5° clearance, it balances finish quality and edge strength.

Is this insert suitable for interrupted cuts and series production?
Yes, the combination of coated carbide grade and robust geometry provides edge stability that is beneficial for interrupted cuts and repeatable performance in series production.

Can this insert be used for finishing as well as semi-finishing?
The VBMT110308-MM4 WSM20S is versatile: the geometry and grade allow use in both finishing and semi-finishing operations depending on chosen parameters and machine capability.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com

Trademarked names and product designations are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only and do not imply any affiliation between our company and the named brands. The offered item is an original, factory-new product of the manufacturer.