TPGT16T304-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Take advantage of the Tiger‑tec Silver coating and the WSM20S grade together with the MM4 chipbreaker for robust, predictable performance on demanding materials; the 0.4 mm corner radius and 11° relief support edge strength and surface finish. Order the insert directly via Metav Werkzeuge or consult the Metav team for application-specific advice.

TPGT16T304‑MM4 WSM20S indexable turning insert, Tiger‑tec Silver, for rostfreier Stahl and superalloys — Walter Tools

The TPGT16T304‑MM4 WSM20S is an indexable turning insert designed for high‑duty machining of rostfreier Stahl and heat‑resistant superalloys and titanium, combining a coated carbide grade with a triangle 60° form for versatile turning tasks

• Tiger‑tec Silver coated carbide
• Grade WSM20S for tough materials
• MM4 chipbreaker for stable chips
• Triangle 60° with 0.4 mm radius

Reliable cutting performance for demanding materials

The WSM20S carbide grade, part of the Tiger‑tec Silver family, is developed for machining applications where material toughness and heat generation are relevant factors. Designed for rostfreier Stahl (ISO group M) and heat‑resistant superalloys or titanium (ISO group S), the cutting grade promotes repeatable cutting behaviour and prolonged edge life. This results in fewer unexpected tool changes and a more consistent production output when machining difficult alloys.

Geometry and edge integrity that support surface finish

The triangular 60° form and 0.4 mm corner radius contribute to a robust cutting edge that balances strength with the potential for fine surface quality. The insert’s 11° relief helps control contact geometry between tool and workpiece, which can reduce rubbing and improve thermal stability at the cutting zone. Together, these geometric details enable steady feeds and predictable workpiece finish on interrupted and continuous turning operations.

Chip control and process stability with MM4

The integrated MM4 chipbreaker is tuned to provide controlled chip formation across a range of feeds and depths of cut. Stable chips reduce the risk of re‑cutting, protect the cutting edge and simplify chip handling in the workplace. For process planners, this translates into improved machining reliability and easier downstream handling, particularly when working with materials that tend to form long, stringy chips.

Compatibility, handling and selection guidance

The insert is supplied in the T‑thickness designation (T3) and is compatible with toolholders designed for triangle 60° indexable inserts. Selection should match workpiece material, cutting conditions and machine capability; when cutting rostfreier Stahl or superalloys, opt for parameters that support continuous chip evacuation and moderate cutting temperatures. For quick identification, the insert is marked with the TPGT16T304‑MM4 WSM20S designation and belongs to the Tiger‑tec Silver series by Walter Tools.

For application support or to secure Walter Tools Tiger‑tec Silver inserts for rostfreier Stahl and superalloy turning, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — Metav’s consultants provide practical machining advice and product availability information.

Technical data

• Article number: TPGT16T304‑MM4‑WSM20S‑WALTER
• Designation: TPGT16T304‑MM4
• Grade: WSM20S
• Series: Tiger‑tec Silver
• Brand: Walter Tools

Facts

• Relief angle: 11°
• Corner radius: 0.4 mm
• Insert size: 16 mm
• Plate form: triangle 60°
• Thickness: T3
• Tolerance class: G

Special features

• Chipbreaker: MM4
• Coating: Tiger‑tec Silver (coated carbide)
• Material applicability: rostfreier Stahl (M), heat‑resistant superalloys and titanium (S)
• Execution: T

FAQ

Which materials is this insert suited for?
The TPGT16T304‑MM4 WSM20S insert from Walter Tools is intended for rostfreier Stahl and for heat‑resistant superalloys and titanium (ISO groups M and S), offering a balance of thermal and edge stability for these materials.

What benefit does the MM4 chipbreaker provide?
The MM4 chipbreaker on this insert promotes controlled chip formation, which enhances process stability and reduces the incidence of long, entangling chips during turning with the Walter Tools grade.

How does the 0.4 mm corner radius affect performance?
A 0.4 mm corner radius strengthens the cutting edge and supports improved surface finish under suitable feeds, helping to resist edge chipping on tougher materials.

Is the insert compatible with standard triangular holders?
Yes; the triangle 60° form and T3 thickness make this insert compatible with toolholders designed for 60° triangular turning inserts; selection should verify holder seat and clamping geometry.

What information helps choose cutting parameters for rostfreier Stahl?
When machining rostfreier Stahl with this Walter Tools grade, prioritise stable chip evacuation, adequate coolant use where applicable and cutting speeds and feeds that limit built‑up edge while preserving tool life.

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

Walter Tools: Walter AG (brand presentation: Walter Tools), headquartered in Tübingen, is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik Group. Protected trademarks and trade names are the property of their respective owners. Trademarks and product names are mentioned for explanatory purposes only; there is no affiliation between our company and the named brands. The offered item is original, factory‑new merchandise from the manufacturer.