CNMG120408-RM5 WMP20S RM5 Wendeplatten - Walter Tools

High wear resistance and stable chip control from the Tiger‑tec Silver grade make this insert a reliable choice for rostfreier Stahl turning; the 0.8 mm corner radius and negative rake support consistent edge life. Order the CNMG120408-RM5 WMP20S directly via Metav Werkzeuge or ask our consultants for tailored cutting data.

CNMG120408-RM5 WMP20S indexable turning insert for rostfreier Stahl — Walter Tools, Tiger‑tec Silver

CNMG120408-RM5 WMP20S is a negative‑rake rhombic insert designed for medium to robust turning of rostfreier Stahl, offering stable cutting edges and controlled chip flow.

• Tiger‑tec Silver coated grade WMP20S
• RM5 chipformer for stable chip control
• Optimised for rostfreier Stahl (ISO group M)
• 0.8 mm corner radius, negative rake

Process stability through advanced coating and chip control

The combination of the Tiger‑tec Silver coating and the RM5 chipformer yields a high level of process stability when machining rostfreier Stahl. The coated carbide construction delivers improved resistance to abrasive and adhesive wear, while the chipformer supports predictable chip breakage and evacuation. This results in fewer interruptions for chip clearing and a steadier cutting force, which helps maintain surface quality and dimensional consistency across longer tool life cycles. The design focuses on measurable production gains rather than theoretical benefits.

Consistent edge life and secure machining performance

A 0.8 mm corner radius with a negative rake provides a robust cutting edge that tolerates interrupted cuts and varying feed conditions frequently encountered with rostfreier Stahl. The insert’s grade, WMP20S, is tuned to reduce build‑up on the cutting edge and to sustain a reliable edge geometry under the thermal and mechanical loads typical of stainless machining. This leads to longer intervals between index changes and a predictable replacement rhythm that supports production planning and cost control.

Geometry and handling for efficient tool use

The rhombic 80° form and CNMG geometry facilitate versatile turning operations, delivering a good balance between accessibility and strength. As an indexable insert, it allows quick edge indexing to reduce downtime and to maintain a stable process window. The negative rake characteristic supports low cutting temperatures on the insert in many rostfreier Stahl applications, helping to prevent premature edge deterioration and to preserve cutting‑edge integrity for reproducible component finish.

Practical application guidance and integration

This grade is specified for ISO group M (rostfreier Stahl) under medium to robust conditions; it is therefore suitable where secure chip formation and high process reliability are required. For specific cutting speeds, feeds and coolant strategies, refer to the machine and holder manufacturer’s data or contact our technical team for parameter recommendations. If additional measurements or compatibility checks are needed for your toolholder system, Metav Werkzeuge can provide the required guidance and cutting data to help integrate the insert into existing tool assemblies.

Choose Walter Tools’ Tiger‑tec Silver WMP20S for dependable rostfreier Stahl turning and contact Metav Werkzeuge for tailored cutting parameters and a personalised quotation by email or phone: info@metav-werkzeuge.com • +49 2822 7131930

Technical data

• Article number: CNMG120408-RM5-WMP20S-WALTER
• Designation: CNMG120408-RM5
• ISO designation: CNMG120408-RM5 WMP20S
• Grade: WMP20S
• Series: Tiger‑tec Silver
• Manufacturer: Walter Tools

Core measurements

• Plate size: 12
• Thickness: 04
• Corner radius: 0.8 mm
• Rake angle: 0° (negative)

Special features

• Chipformer: RM5
• Coating/material: coated carbide (Tiger‑tec Silver)
• Suitable for: rostfreier Stahl (ISO group M)
• Plate form: Rhombus 80°
• Tolerance class: M
• Execution: G

FAQ

Is this insert suitable for machining rostfreier Stahl?
The CNMG120408-RM5 WMP20S by Walter Tools is specifically designed for rostfreier Stahl (ISO group M) and supports stable chip formation under medium to robust cutting conditions.

What benefits does the Tiger‑tec Silver coating provide?
The Tiger‑tec Silver coating on the WMP20S grade enhances wear resistance and thermal stability, resulting in longer tool life and more consistent surface finish when machining rostfreier Stahl.

What role does the RM5 chipformer play?
The RM5 chipformer is engineered for controlled chip breakage and evacuation, reducing the risk of entanglement and improving process reliability with the CNMG120408-RM5 geometry.

Why is the 0.8 mm corner radius important?
A 0.8 mm corner radius reinforces the cutting edge, improving resistance to deformation and chipping during interrupted cuts and helping to maintain dimensional stability in serial production.

Will this insert fit standard CNMG holders?
The CNMG120408‑RM5 geometry follows the CNMG indexable insert standard and is suitable for toolholders designed for CNMG inserts; check holder specifications for seat and clamping compatibility.

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

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