VNMG160408-NFT WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the WSM20S grade and Tiger‑tec Silver technology together with the robust rhombic geometry to achieve stable chip formation and reliable cutting in demanding materials; order and consult via Metav Werkzeuge for application support and availability.

VNMG160408-NFT WSM20S turning insert — Rhombic 35°, 0.8 mm radius | Walter Tools

The VNMG160408-NFT WSM20S is an indexable turning insert engineered for heavy‑duty turning of rostfreier Stahl and heat‑resistant superalloys, offering a balanced combination of wear resistance and edge stability.

• Tiger‑tec Silver coated grade WSM20S
• Suitable for rostfreier Stahl and superalloys
• Rhombic 35° shape for versatile turning
• 0.8 mm corner radius for robust cutting

High‑performance grade for demanding materials

The insert uses the WSM20S cutting grade within the Tiger‑tec Silver family, developed to extend tool life when machining tough alloys. The microstructure and coating system support stable chip formation and reduce edge wear under high temperatures, which is essential for rostfreier Stahl and similar alloys. In practical terms, this means fewer unexpected tool changes and a more predictable production rhythm: machinability issues such as built‑up edge and thermal softening are mitigated by the combination of substrate and coating. For process planners, the result is measurable—improved uptime and consistent surface integrity on sensitive components, especially where reproducible tolerances are required.

Geometry and chip control that improves process stability

The rhombic 35° contour combined with the NFT chipbreaker is tailored to balance cutting forces and chip evacuation in interrupted or continuous turning. The 0° (negative) relief angle gives the insert a robust cutting edge suited to heavier cuts, while the 0.8 mm corner radius increases edge strength for roughing or semi‑finishing steps. These geometric choices reduce vibration and support a stable cut, which contributes directly to longer edge life and better surface finish. For operators less familiar with technical terms: the chipbreaker shapes how chips curl away and the negative relief helps the insert withstand shock loads, so both tool life and process reliability are improved.

Practical benefits: productivity, surface finish and predictability

With an insert size of 16 mm and a nominal thickness of 4 mm, this indexable solution fits standard toolholders and provides a compact, stiff cutting edge for demanding turning tasks. The tolerance class M ensures repeatable seating and minimal runout in toolholders, which aids dimensional control in serial production. Using this insert typically translates to fewer tool swaps, consistent part quality and reduced scrap rates. The combination of grade, coating and geometry thus yields a clear cost‑benefit: higher effective cutting volumes per insert and a more economical machining sequence when working with rostfreier Stahl and heat‑resistant nickel‑based alloys.

Discuss specific machining requirements with Metav Werkzeuge for tailored recommendations on Walter Tools inserts such as this VNMG160408-NFT WSM20S; contact Metav Werkzeuge at +49 2822 7131930 or info@metav-werkzeuge.com to determine the optimal grade and geometry for production needs.

Technical data

• Article number: VNMG160408-NFT-WSM20S-WALTER
• Product name: VNMG160408-NFT WSM20S
• Product type: Turning insert (indexable)
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver

Facts

• Insert size: 16 mm
• Corner radius: 0.8 mm
• Thickness: 4 mm
• Relief angle: 0° (negative)
• Shape: Rhombic 35°
• Tolerance class: M

Special features

• Grade: WSM20S (Tiger‑tec Silver)
• Chipbreaker: NFT
• Material suitability: S / M (superalloys, rostfreier Stahl)
• Application focus: heavy‑duty and stainless turning
• SKU: VNMG160408-NFT-WSM20S-WALTER
• Series designation: Tiger‑tec Silver

FAQ

What materials is this insert best suited for? This turning insert is specified for machining rostfreier Stahl and heat‑resistant superalloys; the WSM20S grade and Tiger‑tec Silver technology target those groups for improved edge life.

How does the NFT chipbreaker affect machining? The NFT chipbreaker on the VNMG160408‑NFT promotes controlled chip formation and evacuation, which helps to reduce cutting interruptions and supports consistent surface quality.

Is the geometry suitable for roughing and finishing? The rhombic 35° shape with a 0.8 mm corner radius provides robustness for roughing while still enabling good surface results in semi‑finishing passes when the cutting data are adapted accordingly.

What does tolerance class M mean for tool setup? Tolerance class M indicates standardised dimensional accuracy for seating and indexing, which contributes to repeatable positioning and reduced runout in toolholders during serial production.

Can this insert be used in standard toolholders for VNMG inserts? Yes, the VNMG160408 footprint and 16 mm size correspond to common holders for this insert family, allowing straightforward integration into existing turning tool systems.

Trademarks and trade names are the property of their respective owners. Mention of brand names serves explanatory purposes only and does not imply any affiliation between our company and the trademark owners. The offered article is an original, factory‑new product of the manufacturer Walter Tools.

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