VBMT160404-MM4 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, a MM4 chipbreaker and a Rhombic 35° geometry for reliable machining of stainless steel; the result is improved tool life and stable chip formation. Order the insert directly via Metav Werkzeuge or contact the consultants for cutting data and application advice.

VBMT160404-MM4 WMP20S Rhombic 35° indexable insert — optimized for stainless steel by Walter Tools

VBMT160404-MM4 WMP20S is an indexable turning insert designed for medium to robust machining of stainless steel, delivering consistent performance in demanding conditions.

• Tiger·tec Silver coated carbide
• Optimised for stainless steel (M)
• Rhombic 35° insert with 0.4 mm radius
• MM4 chipbreaker for stable chip control

Coating that extends tool life and stabilises cuts

The Tiger·tec Silver coating provides a hard, wear-resistant surface on the coated carbide substrate, reducing flank wear and extending tool life under difficult cutting conditions. This technology is particularly effective when working with stainless steel, where heat and material adhesion can shorten insert life. By improving thermal resistance and adhesion control, the coating supports steady performance over longer cycles, which means fewer indexings and less downtime for tool changes.

Geometry engineered for precise surface quality and form control

The Rhombic 35° shape combined with a 0.4 mm radius and a 5° relief angle produces a stable cutting edge that balances strength and accessibility for intricate profiles. The geometry reduces cutting forces in interrupted cuts and helps to maintain dimensional accuracy on shoulders and grooves. For workshops aiming to improve part finish and repeatability, this configuration offers a reliable compromise between strength and finesse, enabling better first-pass tolerances and fewer rework operations.

Chip management tuned for unattended and high-yield production

The MM4 chipbreaker is developed to promote stable chip formation, breaking and evacuating chips effectively during turning of tough alloys. Controlled chips reduce the risk of surface damage and machine stoppages, supporting longer uninterrupted runs. For process planners, predictable chip behaviour simplifies coolant and toolholder choices, and contributes to safer, more efficient cell operation — an advantage when batch sizes increase or when unmanned shifts are required.

Practical application guidance for efficient integration

Designed as a medium‑duty grade within the Tiger·tec Silver family, the insert suits series turning of stainless steel according to ISO group M and performs well under mixed production conditions. The nominal dimensions (16 mm inscribed circle, 4 mm thickness, 0.4 mm corner radius) make it compatible with common tool holders for general turning and finishing operations. For best results, pair the insert with appropriate cutting data for stainless steel and ensure rigid clamping and adequate coolant or through‑tool lubrication to manage heat and adhesion.

For precise cutting data, availability and tailored recommendations for the VBMT160404-MM4 WMP20S from Walter Tools, please contact Metav Werkzeuge — eMail: info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: VBMT160404-MM4-WMP20S-WALTER
• Designation: VBMT160404-MM4 WMP20S
• Manufacturer: Walter Tools

Facts

• Size: 16 mm
• Thickness: 4 mm
• Relief angle: 5°
• Corner radius: 0.4 mm

Special features

• Coating: Tiger·tec Silver
• Grade: WMP20S (coated carbide)
• Chipbreaker: MM4
• Geometry: Rhombus 35°
• Application: stainless steel (ISO M)
• Execution: T

FAQ

What materials is this insert suited for?
The VBMT160404-MM4 WMP20S is formulated for stainless steel applications (ISO group M), offering stable performance in medium to robust cutting conditions.

How does the MM4 chipbreaker affect productivity?
The MM4 chipbreaker promotes reliable chip control and evacuation, reducing interruptions and contributing to longer unattended runs with consistent surface quality.

Can this insert be used for finishing operations?
Yes, the combination of Rhombic 35° geometry and a 0.4 mm radius supports good surface finish and dimensional control during finishing passes when paired with appropriate feeds and speeds.

Which coating technology is applied and what is its benefit?
The insert uses Tiger·tec Silver coating, which enhances wear resistance and thermal stability, improving tool life when machining sticky, heat‑sensitive alloys such as stainless steel.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only. There is no connection between our company and the named brands. The offered item is original, brand‑new goods of the manufacturer Walter Tools.