CCMT120408-RM4 WSM30S RM4 Wendeplatten - Walter Tools

Combining the WSM30S Tiger·tec Silver grade with the RM4 chipbreaker and a rhombic 80° geometry delivers reliable edge life and controlled chips for machining stainless steel and heat‑resistant superalloys; the 7° clearance and 0.8 mm corner radius support consistent surface quality. Order the CCMT120408-RM4 WSM30S directly via Metav Werkzeuge or ask our consultants if needed.

CCMT120408-RM4 WSM30S — Turning / boring indexable insert, Tiger·tec Silver (Walter Tools)

A CCMT120408-RM4 WSM30S indexable insert designed for demanding turning and boring of stainless steel and high‑temperature alloys.

• Tiger·tec Silver coated grade WSM30S
• RM4 chipbreaker for stable chips
• Rhombus 80° geometry for versatile turning
• 7° clearance and 0.8 mm corner radius

Maximise productivity on hard‑to‑cut materials

The combination of the Tiger·tec Silver coating and the WSM30S grade provides enhanced wear resistance and heat management for demanding operations. Coated hardmetal reduces flank and crater wear, which means longer intervals between tool changes and more predictable cycle times. For shops machining stainless steel or heat‑resistant superalloys, this results in fewer interrupts and a steadier production flow. The technical design is oriented toward reliable, repeatable performance rather than trial‑and‑error settings.

Predictable chip control and improved process security

The dedicated RM4 chipbreaker is engineered to produce stable, controllable chips even under heavy contact conditions. Combined with the Rhombus 80° geometry and a 7° clearance angle, the insert encourages smooth chip evacuation and reduces the risk of built‑up edge. A 0.8 mm corner radius balances edge strength and surface finish: it sustains cutting forces while supporting fine finishing where required. In practice, this lowers scrap rates and shortens post‑process work.

Practical form factor for turning and boring operations

Thanks to its CCMT shape and the standard 12 inscribed circle with 04 thickness designation, the insert integrates easily into common toolholders for boring and external turning. The form factor offers a compromise between rigidity and accessibility in tight bores or stepped components. As a coated carbide insert, it permits higher cutting speeds compared with uncoated grades, translating into improved material removal rates without sacrificing control.

Consistent results and less downtime

Choosing a grade tailored for stainless steel and superalloys reduces variability across batches. The coating and substrate pairing deliver a stable cutting edge and consistent surface quality, which supports downstream process reliability. Where repeatability is critical, the predictable wear behaviour of this insert helps maintain tolerances and reduces the need for frequent requalification of tools. For engineering teams, that consistency means clearer planning and lower risk of late rework or delays.

Contact Metav Werkzeuge for tailored application advice and to request the CCMT120408-RM4 WSM30S turning insert from Walter Tools

Technical Data

• Article number: CCMT120408-RM4-WSM30S-WALTER
• Product type: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte
• Designation: CCMT120408-RM4 WSM30S
• Brand: Walter Tools

Facts

• Clearance angle: 7°
• Corner radius: 0.8 mm
• Inscribed circle: 12 mm
• Thickness designation: 04
• Shape: Rhombus 80°

Special features

• Grade: WSM30S (Tiger·tec Silver)
• Chipbreaker: RM4
• Coated carbide insert
• Suitable for stainless steel and superalloys (S / M)

FAQ

Which materials can this insert machine effectively?
The CCMT120408-RM4 WSM30S from Walter Tools is specified for stainless steel (ISO group M) and heat‑resistant superalloys and titanium (ISO group S), offering a balance of heat resistance and edge stability for these difficult materials.

What chip control does the insert provide?
The RM4 chipbreaker promotes predictable chip formation and evacuation, helping to avoid long, stringy chips and supporting steady cutting in demanding turning and boring operations.

What are the key geometric and dimensional features to consider?
The insert features a rhombic 80° shape with a 7° clearance angle, a 0.8 mm corner radius, an inscribed circle of 12 mm and thickness designation 04, suitable for common CCMT toolholder configurations.

Is this a coated carbide grade and what benefit does that bring?
Yes, the WSM30S grade utilises the Tiger·tec Silver coating technology; the coating enhances wear resistance and thermal stability, enabling higher cutting speeds and longer tool life compared with uncoated grades.

For which applications is this insert typically used?
The insert is intended for turning and boring of stainless steel and superalloys where tool life, process security and surface consistency are priorities, particularly in production environments requiring repeatable results.

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

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