CCGT120408-MM4 WSM20S MM4 Wendeplatten - Walter Tools

High thermal stability and reliable chip control make this insert ideal for machining stainless steel and heat-resistant alloys. Benefit from the Tiger·tec Silver wear resistance, the MM4 chipbreaker for consistent swarf formation and the stable Rhombic 80° geometry to increase uptime. Order the CCGT120408-MM4 WSM20S directly via Metav Werkzeuge or consult our specialists for tailored machining recommendations.

CCGT120408-MM4 WSM20S — Rhombic 80° indexable insert for stainless steel and superalloys — Walter Tools

The CCGT120408-MM4 WSM20S is an indexable cutting insert engineered for demanding turning and boring operations, optimised for stainless steel and heat‑resistant superalloys and finished with a Tiger·tec Silver coating.

Tiger·tec Silver coating for enhanced wear resistance
Optimised MM4 chipbreaker for reliable chip control
Rhombic 80° form with 0.8 mm corner radius
7° clearance and 4 mm thickness for stable cutting

Designed for demanding materials to maintain throughput

The insert’s WSM20S grade, part of the Tiger·tec Silver family, targets tough-to-machine alloys such as stainless steel and nickel‑based superalloys. The combination of a coated carbide substrate and a purpose‑tuned grade improves thermal resistance and reduces tendency to build up material on the cutting edge. For workshops processing high volumes of difficult parts, this means fewer interruptions for edge changes and a more predictable machining cycle time, supporting higher overall productivity.

Precision geometry and chip control for safer cycles

A Rhombic 80° form with a 0.8 mm corner radius and MM4 chipbreaker provides controlled swarf formation and stable cutting forces. The 7° clearance reduces flank rubbing and heat generation at the edge, while the 4 mm thickness enhances insert rigidity under interruption or variable engagement depths. These geometric and chip control features translate into consistent component quality and reduced incidence of chatter or surface defects when turning complex profiles.

Durability and process security in everyday production

The coated hardmetal construction and the Tiger·tec Silver technology deliver extended tool life under elevated temperatures and abrasive conditions typical for stainless steel and heat‑resistant alloys. The insert supports repeatable edge-life across batches, which simplifies tool management and reduces the need for frequent requalification. For manufacturing environments where component tolerances and surface finish are critical, the insert helps safeguard process stability and lowers the risk of scrap.

For machining stainless steel and superalloys with reliable performance, contact Metav Werkzeuge to discuss the Walter Tools CCGT120408-MM4 WSM20S and receive application-specific cutting data at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: CCGT120408-MM4-WSM20S-WALTER
• Designation: CCGT120408-MM4 WSM20S
• Series: Tiger·tec Silver
• Manufacturer: Walter Tools

Numbers / Core technical data

• Insert size: 12
• Thickness: 4 mm
• Clearance angle: 7°
• Corner radius: 0.8 mm
• Form: Rhombic 80°
• Chipbreaker: MM4
• Tolerance class: G

Designs / Special features

• Coating: Tiger·tec Silver (coated carbide)
• Grade: WSM20S
• Suitable for: stainless steel
• Suitable for: superalloys and titanium alloys
• Application focus: turning and boring operations
• Robust edge for interrupted cuts and elevated temperatures

FAQ

Is this insert suitable for stainless steel?
Yes. The CCGT120408-MM4 WSM20S grade and Tiger·tec Silver coating are designed specifically to handle stainless steel, offering improved thermal stability and controlled swarf behaviour.

Can the insert be used for nickel‑based superalloys?
Yes. The WSM20S grade supports machining of heat‑resistant superalloys thanks to its coating and grade composition, which prioritise edge stability under poor thermal conductivity conditions.

What benefits does the MM4 chipbreaker provide?
The MM4 chipbreaker optimises chip formation and evacuation, reducing the risk of tangling and enabling safer, more consistent cycles when cutting difficult materials.

Which toolholders and operations match the Rhombic 80° form?
The Rhombic 80° form is widely compatible with standard turning and boring toolholders designed for negative‑geometry inserts; it offers flexible approach angles for a variety of external and internal turning tasks.

Hersteller: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany

Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the named brands. The offered item is an original, factory‑new product from the manufacturer.