VCGT160408-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Take advantage of the combination of proven cutting performance, robust chip control and the Tiger·tec Silver coating for dependable productivity in demanding turning operations; order the insert directly via Metav Werkzeuge or consult our specialists for process recommendations.

VCGT160408-MM4 WSM20S turning indexable insert by Walter Tools — Tiger·tec Silver, 7° clearance

The VCGT160408-MM4 WSM20S is a rhombic 35° turning insert engineered for the machining of stainless steel and heat-resistant superalloys in demanding industrial environments.

• VCGT160408-MM4 WSM20S by Walter Tools
• Tiger·tec Silver coated grade for hard-to-cut materials
• Rhombic 35° geometry with 0.8 mm corner radius
• 7° clearance for stable cutting and chip control

Designed for consistent performance on stainless steel and superalloys

The insert combines a wear-resistant Tiger·tec Silver coating with a substrate optimised for toughness, delivering repeatable cutting life when machining stainless steel and similar difficult-to-cut materials. The specified grade WSM20S supports stable edge behaviour, which reduces the frequency of tool changes and contributes to predictable cycle times. Translating coating technology into shop-floor advantage, the grade balances thermal resistance and edge strength so that cutting parameters can be raised without compromising component quality.

Geometry that improves process reliability and surface result

A rhombic 35° shape and a 0.8 mm corner radius provide a reliable compromise between edge strength and versatility, allowing for both roughing and light finishing passes with one insert geometry. The 7° clearance angle reduces rubbing and heat build-up at the flank face, which helps to maintain dimensional accuracy and surface finish over longer production runs. By choosing the appropriate feed and depth of cut, the geometry supports controlled chip formation and reduces the risk of built-up edge on tougher materials.

Chip control and cutting stability with a dedicated chipbreaker

The MM4 chipbreaker is tuned to promote manageable chip shapes in interrupted and continuous cuts, simplifying evacuation and reducing rework. Stable chip formation directly affects tool life and machine availability: consistent chips decrease secondary damage to the insert and workpiece, making the cutting process more efficient. For shops aiming to improve overall throughput, the combination of the chipbreaker design and the coated grade supports higher metal removal rates while maintaining process security.

Practical handling and integration into turning cells

The insert’s standard ISO designation and format allow straightforward integration into existing toolholders and tool management systems, minimising retooling effort. The tolerance class G ensures interchangeability and predictable seating in precision toolholders. Using this insert in systematic tool-change strategies reduces setup time and supports consistent part-to-part quality. For production environments that require traceability and predictable replacement cycles, the combination of proven grade and standardised geometry simplifies inventory management.

Contact Metav Werkzeuge for tailored recommendations on Walter Tools Tiger·tec Silver inserts and to discuss suitable grades for specific stainless steel applications: info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• SKU: VCGT160408-MM4-WSM20S-WALTER
• Article: VCGT160408-MM4 WSM20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver
• Grade: WSM20S

Data

• Clearance angle: 7°
• Corner radius: 0.8 mm
• Inscribed circle / size: 16 mm
• Thickness code: 04
• Tolerance class: G
• UID: VCGT160408-MM4-WSM20S-WALTER

Special features

• Geometry: Rhombus 35°
• Chipbreaker: MM4
• Coating: Tiger·tec Silver
• Material designation: S / M
• Application: stainless steel and heat-resistant superalloys

FAQ

What materials is this insert best suited for?
The VCGT160408-MM4 WSM20S insert from Walter Tools is intended primarily for stainless steel and for heat-resistant superalloys classified under S, offering a good compromise between thermal resistance and edge stability.

How does the Tiger·tec Silver coating affect tool life?
The Tiger·tec Silver coating on the VCGT160408-MM4 WSM20S enhances thermal stability and wear resistance, which typically extends cutting life and supports higher cutting speeds compared with uncoated grades.

Can the same insert be used for roughing and finishing?
Thanks to the rhombic 35° geometry and the 0.8 mm corner radius, the insert is suitable for a range of operations from robust roughing to light finishing, provided cutting parameters are adapted accordingly.

Does the MM4 chipbreaker suit interrupted cuts?
Yes, the MM4 chipbreaker is designed to produce controllable chip forms in both continuous and interrupted machining, improving evacuation and reducing the chance of chip entanglement.

Is the insert compatible with standard toolholders?
The insert follows the common ISO-style designation, so VCGT160408-MM4 WSM20S fits standard toolholders made for this insert family and tolerance class.

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

The Walter AG (brand appearance: Walter Tools) is a recognised manufacturer of precision cutting tools and belongs to the Sandvik group. Trade names and trademarks are the property of their respective owners. Brand names and protected product designations are mentioned for explanatory purposes only. There is no connection between our company and the named brands. The offered article is original, factory-new goods of the manufacturer.