VBMT160408-MM4 WMP20S WMP20S Wendeplatten - Walter Tools

Benefit from the combination of durable coating performance and reliable chip control—Tiger·tec Silver WMP20S grade together with the MM4 chipbreaker delivers stable cutting and prolonged edge life for rostfreier Stahl machining; the Rhombic 35° geometry and 0.8 mm corner radius provide predictable finish and versatile feed ranges. Order the insert directly via Metav Werkzeuge or consult our technical advisers for application-specific guidance

VBMT160408-MM4 WMP20S – Turning insert, Tiger·tec Silver, MM4 chipbreaker | Walter Tools

The VBMT160408-MM4 WMP20S is an indexable turning insert optimised for medium to robust machining of rostfreier Stahl, offering a balance of edge stability and controlled chip formation for general turning operations

• Tiger·tec Silver coating for longer life
• Optimised for rostfreier Stahl machining
• Rhombic 35° shape for stable cutting
• Corner radius 0.8 mm for versatile finishing

Deliver consistent component quality with optimised edge life

The coated WMP20S grade, part of the Tiger·tec Silver series, is engineered to reduce flank wear and preserve the cutting edge under demanding conditions. By combining a modern CVD/PVD-style coating approach with a wear-resistant substrate, the insert supports longer tool life and fewer tool changes, which in turn reduces unplanned downtime. For workshops aiming to increase process efficiency, the stable edge life translates into fewer regrinds and predictable replacement intervals, improving overall throughput.

Achieve safer chip control and reliable surface finishes

The MM4 chipbreaker is designed to shape and evacuate chips effectively when machining tougher, heat-generating materials such as rostfreier Stahl. Controlled chip formation reduces the risk of built-up edge and improves surface integrity, while the Rhombic 35° geometry promotes a robust cutting angle that tolerates variable feeds. This combination supports consistent part finish and lowers the incidence of secondary operations, giving a clear productivity benefit in batch and serial production.

Versatility in setup and predictable process behaviour

The insert’s nominal dimensions and a corner radius of 0.8 mm allow for a wide range of finishing and semi-finishing passes with predictable tool engagement. The modest 5° clearance angle helps maintain a strong cutting edge and resists deflection in interrupted cuts. Because the grade and chipbreaker are matched to typical behaviour of rostfreier Stahl, the component manufacturer gains a dependable solution that simplifies tool selection and shortens setup times, contributing to faster cycle stabilisation on the shop floor.

Contact Metav Werkzeuge for tailored advice on toolholder compatibility, cutting data recommendations and stock availability for the Walter Tools VBMT160408-MM4 WMP20S insert

Technical data

• Article number: VBMT160408-MM4-WMP20S-WALTER
• Designation: VBMT160408-MM4 WMP20S
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte

Numbers / Core technical data

• Plate size: 16
• Plate thickness: 04
• Clearance angle: 5°
• Corner radius: 0.8 mm

Designs / Special features

• Series: Tiger·tec Silver
• Grade: WMP20S (coated carbide)
• Chipbreaker: MM4
• Shape: Rhombus 35°
• Material code: M
• Suitable for: rostfreier Stahl

FAQ

Which materials is this insert best suited for?
The VBMT160408-MM4 WMP20S insert and its WMP20S grade are specifically formulated for machining rostfreier Stahl, where toughness and heat sensitivity demand a coating that supports stable chip formation.

What does the MM4 chipbreaker do?
The MM4 chipbreaker controls chip shape and evacuation to prevent long, stringy chips and to reduce the risk of built-up edge when cutting tough, heat-generating materials such as rostfreier Stahl.

How does the Rhombic 35° geometry affect cutting?
The Rhombic 35° profile provides a robust cutting angle that increases insert strength and helps maintain surface finish consistency, particularly in variable feed or interrupted cut conditions.

Is the insert suitable for finishing as well as semi-finishing?
Yes. With a corner radius of 0.8 mm and the matched grade and chipbreaker, the insert delivers predictable results across finishing and semi-finishing operations.

Which series and coating technology does this product use?
This insert is part of the Tiger·tec Silver series; the coating technology enhances wear resistance and edge stability for longer, more reliable tool life.

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

Trademarks and product names are the property of their respective owners. Mention of brand names (Walter Tools) is for explanatory purposes only; there is no affiliation between our company and the named brands. The offered item is an original, factory-new product of the manufacturer.