CCGT09T308-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Combining the Tiger·tec Silver coating with the wear‑resistant WSM20S grade and a sturdy 0.8 mm corner radius, this insert offers stable cutting performance in stainless steels and high‑temperature alloys. Order the insert via Metav Werkzeuge or contact the technical consultants for matching recommendations.

CCGT09T308-MM4 WSM20S drilling/turning insert — Tiger·tec Silver, suitable for stainless steels (Walter Tools)

The CCGT09T308-MM4 WSM20S is a rhombic 80° indexable insert designed for drilling, reaming and turning applications, optimised for rostfreier Stahl and heat‑resistant superalloys.

• Tiger·tec Silver coating for heat resistance
• Suitable for stainless steels and superalloys
• Rhombic 80° insert with 7° clearance
• 0.8 mm corner radius for robust edge

Improved performance in heat‑sensitive materials

The Tiger·tec Silver coating combined with the WSM20S grade delivers enhanced thermal stability and wear resistance when machining stainless steels and other difficult‑to‑cut alloys. The coated carbide body supports secure chip formation and reduces edge chipping under elevated cutting temperatures, which translates into more consistent surface finish and extended tool life. This specification is particularly relevant where material toughness and heat generation would otherwise compromise cutting edge integrity.

Geometry that stabilises cutting and extends service intervals

The rhombic 80° shape and 7° clearance provide an effective balance between cutting strength and accessibility in confined bores or complex turning profiles. The 0.8 mm corner radius increases edge robustness for intermittent cuts and interrupted machining, while the MM4 chipbreaker promotes predictable chip control and reduced built‑up edge. Together, these geometric features contribute to steady tool behaviour and longer operational intervals between index changes.

Productivity benefits for batch and mixed‑material work

With a focus on reliable chip control and repeatable edge performance, this insert reduces downtime associated with frequent tool changes and regrinding. The combination of a modern coating system and a specially adapted grade means less scrap and fewer cycle interruptions when processing rostfreier Stahl and high‑temperature alloys. For production environments handling mixed materials, the insert’s design helps maintain dimensional accuracy and surface quality across varying component runs.

Application notes and compatibility

The insert is supplied in the ISO designation CCGT09T308‑MM4 WSM20S and fits toolholders designed for rhombic 80° CCGT‑style indexable inserts with a T3 thickness. The material classification indicates suitability for M (rostfreie Stähle) and S (superlegierungen and titan), ensuring the cutting concept is aligned with the thermal and mechanical demands of these groups. For specific cutting data and holder compatibility, Metav Werkzeuge’s technical literature and advisers can provide the matched parameters for efficient integration.

Contact Metav Werkzeuge for application matching and availability of the Walter Tools CCGT09T308‑MM4 WSM20S insert — technical consultancy and delivery support are available through Metav Werkzeuge.

Technical data

• Article number: CCGT09T308‑MM4‑WSM20S‑WALTER
• Designation: CCGT09T308‑MM4 WSM20S
• Type: Drilling/Reaming and Turning insert
• Manufacturer: Walter Tools

Facts

• Coating / series: Tiger·tec Silver
• Grade: WSM20S
• Clearance angle: 7°
• Corner radius: 0.8 mm
• Insert shape: Rhombic 80°
• Insert size: 09
• Thickness: T3
• Tolerance class: G

Special features

• Chipbreaker: MM4
• Material groups: S / M
• Base material: coated carbide
• Application: rostfreier Stahl, heat‑resistant superalloys

FAQ

What materials is this insert suitable for?
The CCGT09T308‑MM4 WSM20S is specified for rostfreier Stahl (ISO group M) and for heat‑resistant superalloys and titanium (ISO group S), reflecting the WSM20S grade and Tiger·tec Silver coating.

Which chipbreaker is fitted and what is its purpose?
The insert features the MM4 chipbreaker, which is designed to promote stable chip formation and reduce build‑up, improving surface finish and cutting stability during milling and turning.

What does the 0.8 mm corner radius mean for operation?
A 0.8 mm corner radius provides a stronger cutting edge for intermittent cuts and enhances edge life, reducing the likelihood of micro‑chipping in demanding stainless and high‑temperature alloy applications.

Is this insert compatible with standard CCGT toolholders?
The ISO designation CCGT09T308‑MM4 indicates compatibility with holders made for CCGT‑style rhombic 80° inserts with T3 thickness; matching holders and clamping methods should be confirmed for exact seating and run‑out requirements.

How does the Tiger·tec Silver technology affect productivity?
Tiger·tec Silver coating improves heat resistance and wear behaviour, enabling longer cutting times and more consistent results when machining tough materials, which can increase throughput and reduce tooling costs per component.

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

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