TCMT16T308-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Take advantage of the combination of reliable edge stability and a heat‑resistant Tiger‑tec Silver grade for secure machining of demanding alloys; the insert’s MM4 chipbreaker and triangle form ensure consistent chip control. Order the TCMT16T308‑MM4 WSM20S directly via Metav Werkzeuge or ask our consultants if needed.

TCMT16T308‑MM4 WSM20S — Drilling/Boring and Turning Indexable Insert, Triangle 60°, Walter Tools

TCMT16T308‑MM4 WSM20S is a triangle turning and boring insert designed for demanding applications in rostfreier Stahl and heat‑resistant alloys

• Tiger‑tec Silver coating for heat resistance
• Optimised MM4 chipbreaker for stable chips
• Triangle 60° form for robust indexing
• 0.8 mm nose radius for precise finishing
• 7° clearance angle reduces rubbing

Increased productivity through a heat‑resistant grade

The insert uses the Tiger‑tec Silver coating and the WSM20S grade, which together provide enhanced thermal resilience and wear resistance when machining rostfreier Stahl and other difficult‑to‑cut alloys. This combination reduces edge build‑up and extends tool life, meaning fewer tool changes and higher uptime on the workshop floor. The technical advantage is expressed in improved process stability: the coating manages heat at the cutting edge while the substrate maintains toughness, resulting in reliable performance in continuous turning and boring cycles.

Geometry designed for predictable chip control and surface quality

A triangle 60° form with an MM4 chipbreaker and a 0.8 mm nose radius delivers both robustness and the potential for fine surface finishes. The chipbreaker shapes and breaks chips to avoid entanglement, especially important when machining sticky or work‑hardening materials. The 7° clearance angle reduces flank rubbing and heat generation. For users less familiar with insert geometry: the nose radius determines the achievable surface finish and strength at the cutting tip; a 0.8 mm radius is a balanced option for general turning tasks that seek a good compromise between finish and edge stability.

Practical benefits for production and toolroom planning

The TCMT format allows fast indexing on standard toolholders and reduces setup time in mixed‑operation environments. The insert’s combination of coated carbide grade and MM4 chipbreaker supports a predictable tool change rhythm and consistent part quality, which simplifies process documentation and reduces scrap. For procurement and planning, the insert’s robust configuration means fewer tool variants are necessary across rostfreier Stahl and nickel‑based alloys, supporting leaner tool cabinets and lower logistical effort.

Choosing the insert for specific applications

When machining components with challenging material behaviour—such as low thermal conductivity or a tendency to work‑harden—the WSM20S grade is tailored to keep the cutting edge intact and produce regular chips. The insert is particularly suitable for medium to heavy turning operations and for boring where secure edge life is required. Selecting the appropriate cutting data (speed, feed, depth of cut) in line with the machine’s rigidity and material condition will unlock the insert’s full potential. For customers who need help translating material characteristics into cutting parameters, consultation is available to align the insert’s advantages with exact production targets.

For stable, heat‑resistant performance choose the Walter Tools Tiger‑tec Silver TCMT16T308‑MM4 WSM20S — contact Metav Werkzeuge for tailored advice and prompt delivery via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: TCMT16T308‑MM4‑WSM20S‑WALTER
• SKU: TCMT16T308‑MM4‑WSM20S‑WALTER
• Brand: Walter Tools

Facts

• Insert size: 16
• Insert shape: Triangle 60°
• Nose radius: 0.8 mm
• Clearance angle: 7°
• Thickness: T3

Special features

• Coating / series: Tiger‑tec Silver
• Grade / sort: WSM20S
• Chipbreaker: MM4
• Suitable for: rostfreier Stahl; heat‑resistant superalloys and titanium (ISO groups M and S)
• Application: Drilling/boring and turning indexable insert

FAQ

What materials is this insert intended for?
The TCMT16T308‑MM4 WSM20S is optimised for rostfreier Stahl and heat‑resistant superalloys (ISO groups M and S), offering improved edge stability in these challenging materials.

Which chipbreaker does the insert use and why is it important?
This insert features the MM4 chipbreaker; the MM4 geometry promotes consistent chip formation and evacuation, reducing the risk of chip‑related interruptions in turning and boring operations.

How does the Tiger‑tec Silver coating benefit production?
The Tiger‑tec Silver coating on the WSM20S grade increases thermal resistance at the cutting edge, which contributes to longer tool life and steadier cutting conditions during continuous machining of difficult alloys.

Can the insert be used for finishing passes?
With a 0.8 mm nose radius, the insert balances strength and surface finish capability; it can be used for semi‑finishing and certain finishing operations depending on cutting parameters and machine rigidity.

Is the insert compatible with standard toolholders?
The TCMT form is a common indexable insert format; the TCMT16T308‑MM4 fits standard toolholders designed for TCMT‑style triangular inserts, allowing quick indexing and replacement.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com