CCMT09T304-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WSM20S grade for reliable performance in demanding materials, together with the MM4 chipbreaker for consistent chip control; order the insert directly via Metav Werkzeuge or contact the consultancy team for tailored process recommendations.

CCMT09T304-MM4 WSM20S — Turning indexable insert, Tiger·tec Silver coating, Walter Tools

The CCMT09T304-MM4 WSM20S is a rhombic 80° turning insert engineered for secure machining of rostfreier Stahl and heat‑resistant superalloys, combining a wear‑resistant grade with an optimised chip control geometry.

• Tiger·tec Silver coating for thermal stability
• Optimised MM4 chipbreaker for stable chips
• Rhombic 80° insert, 0.4 mm corner radius

Robust cutting performance for difficult alloys and rostfreier Stahl

The combination of the Tiger·tec Silver coating and the WSM20S carbide grade provides a significant improvement in thermal resistance and wear behaviour when machining rostfreier Stahl and other tough alloys. The multilayer coating reduces heat penetration to the carbide substrate and supports a stable cutting edge, which translates into longer tool life and fewer interruptions for insert changes. This technical advantage means smoother process windows when facing issues such as work hardening and built‑up edge, typical for these materials.

Precision geometry that controls chips and improves surface quality

The insert’s MM4 chipbreaker and Rhombic 80° form work together to deliver predictable chip formation and controlled evacuation during turning. The 0.4 mm corner radius and 7° clearance angle (freedom for clearance) offer a balance between edge strength and finishing capability, making the geometry suitable for medium to light roughing and semi‑finishing passes. The T3 thickness adds rigidity at the cutting edge, which helps maintain dimensional stability and contributes to improved component surface quality with fewer rework cycles.

Productivity benefits and economical tool life

By favouring stable chip control and high thermal stability, this insert reduces the risk of unplanned downtime and tool‑related rejects. The grade’s resistance to softening at elevated temperatures supports consistent cutting performance across longer running times, which yields better utilisation of machining centres and a lower cost per part in high‑mix production. The rhombic insert form also enables flexible indexing options, allowing multiple cutting edges per insert to be employed before disposal.

Typical applications and process recommendations

Designed for machining rostfreier Stahl and demanding superalloys (ISO groups M and S), the insert performs well where heat management and edge stability are critical. Preferred uses include interrupted and continuous turning of workpieces prone to strain‑hardening or thermal build‑up. For best results, pair the insert with a rigid toolholder, maintain stable cutting parameters, and use coolant strategies appropriate to the workpiece material and cycle times. For additional machining data or adaptation to a specific machine set‑up, Metav Werkzeuge offers technical support and material‑specific recommendations.

Contact Metav Werkzeuge for tailored cutting data and to request the CCMT09T304-MM4 WSM20S insert from Walter Tools; phone +49 2822 7131930 or eMail info@metav-werkzeuge.com

Technical Data

• SKU: CCMT09T304-MM4-WSM20S-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte CCMT09T304-MM4 WSM20S Walter Tools
• Manufacturer: Walter Tools
• Series: Tiger-tec Silver
• Grade: WSM20S
• Chipbreaker: MM4

Core technical values

• Clearance angle: 7°
• Corner radius: 0.4 mm
• Thickness: T3
• Shape: Rhombus 80°
• Size designation: 09

Special features and applicability

• Coating: Tiger·tec Silver
• Carbide grade: WSM20S (coated cemented carbide)
• Material applicability: rostfreier Stahl; heat‑resistant superalloys and titanium (ISO groups M and S)
• Tolerance class: M
• Insert designation: CCMT09T304-MM4

FAQ

Which materials are best machined with this insert?
The CCMT09T304-MM4 WSM20S insert is intended primarily for rostfreier Stahl and heat‑resistant superalloys (ISO groups M and S); the WSM20S grade supports secure chip formation and edge stability in these challenging materials.

What advantages does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating on the WSM20S grade increases thermal resistance and reduces wear, which helps the CCMT09T304‑MM4 insert maintain a consistent cutting edge and extend useful tool life under elevated cutting temperatures.

How does the MM4 chipbreaker affect machining?
The MM4 chipbreaker produces controlled chip shapes and improves evacuation, reducing the likelihood of chip entanglement and promoting steadier cutting forces; this benefits surface finish and reduces machine interruptions.

Is the insert suitable for finishing passes?
With a 0.4 mm corner radius and Rhombic 80° geometry, the insert is appropriate for semi‑finish and finish operations where a balance of edge strength and surface quality is required; final results depend on cutting parameters and holder rigidity.

What is the full designation for ordering?
Order under the designation CCMT09T304‑MM4 WSM20S (Walter Tools); the SKU is CCMT09T304‑MM4‑WSM20S‑WALTER.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

Walter Tools is part of a leading group in precision machining solutions. Protected trademarks and product names belong to their respective owners. Mention of brand names serves explanation only; there is no affiliation between Metav Werkzeuge and the mentioned manufacturers. The offered item is original, factory‑new product of the manufacturer.