SPGT09T304-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Take advantage of the combination of heat‑resistant Tiger·tec Silver grade, a dedicated MM4 chipbreaker and a compact 0.4 mm corner radius for efficient, repeatable turning of demanding materials; order the insert through Metav Werkzeuge or contact the team for application advice.

SPGT09T304-MM4 WSM20S indexable turning insert – Tiger·tec Silver, for rostfreier Stahl and superalloys (Walter Tools)

The SPGT09T304-MM4 WSM20S is a square 90° indexable turning insert designed for secure chip control and robust edge stability when machining rostfreier Stahl and heat‑resistant superalloys.

Tiger·tec Silver coating for heat resistance and wear control
Optimised MM4 chipbreaker for predictable chip formation
0.4 mm corner radius for fine finishing and repeatability
Suitable for rostfreier Stahl and high‑temperature alloys

Enhanced productivity for difficult materials

The Tiger·tec Silver grade WSM20S combines a coated cemented carbide substrate with a coating architecture intended to withstand high temperatures and abrasive conditions. As a result, the insert supports elevated cutting conditions on rostfreier Stahl and nickel‑based alloys, reducing cycle times while maintaining tool life. The indexable turning insert design enables quick rotation to a fresh cutting edge, keeping machine uptime high and allowing predictable planning of tool change intervals.

Reliable chip control for safer turning operations

Equipped with the MM4 chipbreaker, this insert promotes controlled chip formation even under the thermal and material‑flow challenges presented by rostfreie Stähle and superalloys. Stable chip breakage lowers the risk of entanglement and reduces manual clean‑up, which benefits both unattended machining and operator safety. Clear chip control also contributes to a consistent cutting load, which helps preserve the cutting edge and leads to more reproducible results over longer production runs.

Geometry designed for finishing and consistent surface quality

The square 90° form with a 0.4 mm corner radius and an 11° free angle balances strength and precision: the moderate radius supports fine surface finish while the clearance angle reduces rubbing and heat at the flank. This geometry assists in achieving dimensional stability and a consistent surface appearance on difficult‑to‑machine parts, meaning fewer secondary operations and faster delivery of finished components.

Practical benefits and application guidance

As a Walter Tools insert in the Tiger·tec Silver range, the SPGT09T304‑MM4 WSM20S is intended for focused applications where thermal resistance and cutting edge integrity are priorities. The combination of coating technology and chipbreaker is particularly suited to continuous and semi‑continuous turning of rostfreier Stahl and superalloys in aerospace, energy and high‑value component manufacturing. For optimal results, match the insert grade and geometry to the machine rigidity, workpiece clamping and coolant strategy used in the specific process.

For tailored tooling recommendations based on the Tiger·tec Silver WSM20S chemistry, contact Metav Werkzeuge for application support and ordering: info@metav-werkzeuge.com • +49 2822 7131930

Technical Data

• Article number: SPGT09T304-MM4-WSM20S-WALTER
• Label: Drehwendeschneidplatte SPGT09T304-MM4 WSM20S Walter Tools
• Product type: Indexable turning insert
• Series: Tiger‑tec Silver
• Grade: WSM20S

Core technical figures

• Plate size: 09
• Plate form: Square 90°
• Thickness: T3
• Corner radius: 0.4 mm
• Free angle: 11°
• Tolerance class: G

Special features / Applications

• Chipbreaker: MM4
• Sort/Grade technology: Tiger·tec Silver
• Material groups: S / M
• Material application: rostfreier Stahl (ISO group M) and heat‑resistant superalloys (ISO group S)
• Base designation: SPGT09T304‑MM4
• ISO designation: SPGT09T304‑MM4 WSM20S

FAQ

What materials is this insert intended for?
The SPGT09T304‑MM4 WSM20S is developed for machining rostfreier Stahl (ISO group M) and heat‑resistant superalloys (ISO group S), offering thermal stability and controlled chip formation.

Which chipbreaker is fitted and what does it deliver?
The insert features the MM4 chipbreaker, which promotes short, controllable chips under the higher temperatures and adhesive tendencies of rostfreier Stahl, aiding process reliability.

How does the Tiger·tec Silver grade help in production?
The Tiger·tec Silver coating improves wear resistance and thermal robustness, extending edge life during elevated cutting speeds and providing consistent performance in serial production.

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

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