SCMT120404-RM4 WSM30S WSM30S Wendeplatten - Walter Tools

Take advantage of the combination of high process security, durable edge life and reliable chip control for consistent production results; order the insert directly via Metav Werkzeuge or consult our team for cutting-parameter recommendations.

SCMT120404-RM4 WSM30S indexable turning insert — Tiger·tec Silver grade for rostfreier Stahl and superalloys, Walter Tools

A SCMT120404-RM4 WSM30S indexable turning insert designed for stable machining of rostfreier Stahl and heat-resistant superalloys, optimised for demanding turning operations

• SCMT120404-RM4 WSM30S by Walter Tools
• Tiger·tec Silver coating for increased edge life
• RM4 chipbreaker for secure chip control
• Ideal for rostfreier Stahl and superalloys

Reliable performance for demanding materials

The WSM30S grade, part of the Tiger·tec Silver series, is a coated carbide designated for heavy-duty turning where tool life and stability matter. With the combination of the RM4 chipbreaker and a precision ground square geometry, the insert delivers consistent chip formation and predictable cutting forces when machining tough-to-cut alloys. This performance reduces downtime caused by edge instability and helps maintain steady cycle times on repetitive components.

Geometry and coating designed for edge stability

A low relief angle of 7° and a 0.4 mm corner radius support robust cutting edges that resist chipping under high thermal and mechanical loads. The coated carbide substrate and Tiger·tec Silver surface treatment enhance heat resistance and adhesion strength, thereby improving wear behaviour on workpieces that generate heavy heat. As a direct result, the insert supports longer tool life and fewer indexings, translating into measurable efficiency gains.

Chip control and operational benefits

The RM4 chipbreaker is engineered for secure chip control across a range of feeds and depths of cut typical for stainless and high-temperature alloys. Predictable chips reduce the risk of entanglement and machine stoppages and make automated and lights-out operations more reliable. Combined with the square 90° configuration, this insert provides flexible set-ups for facing and light roughing tasks while maintaining a steady surface finish.

Material compatibility and machining guidance

The grade covers the ISO groups M (rostfreie Stähle) and S (heat-resistant superalloys and titanium), which are prone to work‑hardening and high thermal load. In practical terms, the chemistry and coating of the grade promote stable chip formation and a resilient cutting edge when machining such materials. When selecting cutting parameters, favour moderate cutting speeds with controlled feeds to balance tool life and productivity; Metav Werkzeuge can provide application-specific recommendations if required.

For machining rostfreier Stahl and superalloys with Walter Tools' Tiger·tec Silver inserts, contact Metav Werkzeuge for tailored advice and supply — eMail: info@metav-werkzeuge.com • Tel: +49 2822 7131930

Technical Data

• Article number: SCMT120404-RM4-WSM30S-WALTER
• ISO designation: SCMT120404-RM4 WSM30S
• Series: Tiger-tec Silver
• Grade: WSM30S
• Manufacturer: Walter Tools

Facts

• Free angle: 7°
• Corner radius: 0.4 mm
• Insert form: Square 90°
• Size: 12
• Plate thickness code: 04
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Chipbreaker: RM4
• Material suitability: S / M
• Product type: indexable turning insert

FAQ

What materials is the insert suited for?
The WSM30S grade is formulated for rostfreie Stähle (ISO group M) and heat‑resistant superalloys/titanium (ISO group S), providing good edge stability under thermal stress.

Which chipbreaker should be selected for medium‑duty turning?
The RM4 chipbreaker integrated in this insert is suitable for secure chip control in a broad range of turning tasks, particularly where predictable chips and reduced entanglement are required.

How does the Tiger·tec Silver coating affect tool life?
The Tiger·tec Silver coating increases heat resistance and adhesion strength on the cutting edge, improving wear behaviour and extending tool life when machining difficult alloys.

Is the square 90° geometry suitable for facing operations?
Yes; the square 90° form with a 0.4 mm corner radius offers flexibility for facing and light roughing while maintaining a robust cutting edge.

Can this insert be used for automated lights‑out machining?
With stable chip formation from the RM4 chipbreaker and the thermal resilience of the Tiger·tec Silver coating, the insert supports reliable automated processes when cutting parameters are optimised.

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