SNMG120408-RM5 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of stable edge performance, broad material suitability and the proven Tiger‑tec Silver coating for reliable productivity in demanding turning operations — order the inserts through Metav Werkzeuge or consult the technical team for machining guidance.

SNMG120408-RM5 WSM20S indexable turning insert (for S/M – superalloys & rostfreier Stahl) by Walter Tools

SNMG120408-RM5 WSM20S is an indexable turning insert engineered for heavy-duty and heat-prone materials; designed to deliver stable chip formation and consistent cutting-edge performance in industrial turning applications

• Coated Tiger‑tec Silver grade WSM20S
• RM5 chipbreaker for secure chip control
• 0.8 mm corner radius for robust edge strength
• Square 90° form with 0° negative rake

High productivity on heat-resistant alloys and rostfreier Stahl

The combination of Tiger‑tec Silver coating and the WSM20S grade makes this insert particularly effective on rostfreier Stahl and heat-resistant superalloys. The coating increases thermal resilience and reduces flank wear, which in practice leads to longer cutting intervals and fewer tool changes. The RM5 chipbreaker supports consistent chip control under difficult cutting conditions, reducing the risk of built-up edge and stabilising cutting forces. For production environments aiming to lower cycle times, this geometry offers a balance between edge durability and process reliability.

Predictable tool life and stable cutting results

A 0.8 mm corner radius and the negative 0° rake angle combine to protect the cutting edge where loads are highest, improving resistance against chipping during interrupted cuts. The insert’s Square 90° form provides positive support for shoulder and profiling operations, delivering repeatable dimensional outcomes across batches. Made from coated carbide, the grade is optimised for abrasive and adhesive wear mechanisms typical of high-temperature workpieces. These attributes contribute to reduced downtime and a predictable tool consumption profile, which supports planning and cost-efficiency in CNC turning centres.

Practical machining guidance and handling advantages

The SNMG120408-RM5 WSM20S insert, with an inscribed circle of 12 mm and a plate thickness of 4 mm, is suitable for both roughing and medium finishing with appropriate cutting data adaptations. The RM5 chipbreaker is intended to create short, controllable chips when machining ductile and heat-prone materials, aiding chip evacuation and tool life. The negative rake enhances edge stability on heavy cuts and interrupted machining, while the square shape offers maximal edge count per insert for economical index changes. For setup optimisation, match insert geometry to the holder’s lead angle and use cutting parameters that favour stable thermal conditions.

For application-specific recommendations or to source Walter Tools SNMG120408-RM5 WSM20S inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored support

Technical Data

• Article number / SKU: SNMG120408-RM5-WSM20S-WALTER
• Designation: SNMG120408-RM5 WSM20S
• Product type: indexable turning insert
• Brand: Walter Tools
• Series: Tiger‑tec Silver

Facts

• Corner radius: 0.8 mm
• Inscribed circle: 12 mm
• Plate thickness: 4 mm
• Rake angle: 0° (negative)
• Insert form angle: 90°

Special features

• Grade: WSM20S (coated carbide)
• Chipbreaker: RM5
• Applicability: S / M (superalloys, rostfreier Stahl)
• Execution code: G
• Tolerance class: M
• Geometry: Square 90° insert, negative rake

FAQ

What materials are best suited to this insert?
The SNMG120408-RM5 WSM20S insert is designed primarily for machining rostfreier Stahl and heat-resistant superalloys (ISO groups S and M), offering improved thermal stability and secure chip formation for these demanding materials.

How does the RM5 chipbreaker affect machining?
The RM5 chipbreaker on this grade promotes short, controllable chips and supports consistent evacuation, which helps maintain a stable cutting edge and lowers the risk of built-up edge when machining ductile, heat-prone materials.

Which operations benefit most from the square 90° form?
Shoulder turning and general profiling benefit from the Square 90° form and the robust 0.8 mm corner radius, which provide support for heavier cuts and good edge life in interrupted or mixed-operation sequences.

Is this insert suitable for finishing passes?
With correct cutting parameters, the coated WSM20S grade can be used for medium finishing; however, surface finish depends on tool setup, feed rates and the specific alloy. The geometry is optimised for a combination of productivity and reasonable surface quality.

What are the critical setup considerations for best results?
Stable clamping, appropriate coolant strategy, and selecting a matching toolholder geometry are key. The negative 0° rake and square geometry demand attention to feed and depth settings to exploit the insert’s edge strength and chip control.

Hersteller: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen

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