CCMT120404-MM4 WMP20S WMP20S Wendeplatten - Walter Tools

Benefit from a robust cutting solution that pairs the WMP20S grade with Walter Tools’ Tiger·tec Silver coating for reliable machining of stainless steels; the rhombic 80° geometry and 0.4 mm corner radius ensure precise edge engagement and consistent chip control. Order or discuss application requirements directly via Metav Werkzeuge for fast, tailored advice.

CCMT120404-MM4 WMP20S drilling/boring and turning indexable insert, Tiger·tec Silver, Walter Tools

The CCMT120404-MM4 WMP20S is a coated carbide indexable insert designed for demanding turning and drilling/boring operations, optimised for machining stainless steels under medium to robust cutting conditions.

• Tiger·tec Silver coating for improved edge life
• Optimised chipbreaker MM4 for stable chips
• Rhombic 80° geometry for versatile turning
• Specifically for stainless steels (ISO M)

Consistent performance when machining stainless steels

The insert delivers consistent performance in applications involving stainless steels, where material toughness and heat generation demand a combination of edge stability and thermal resistance. The WMP20S grade benefits from the Tiger·tec Silver coating which supports secure chip formation and reduces the tendency for built-up edge. For workshops seeking repeatable surface quality and reduced rework, this specification translates into fewer interrupted cycles and improved process reliability.

Stable chip control reduces downtime

An effective chipbreaking geometry is critical for uninterrupted production. The MM4 chipbreaker is engineered to produce short, controlled chips in turning and boring operations, lowering the risk of entanglement and machine stoppages. By maintaining stable chip formation, tool life is optimised and operator intervention is minimised, which supports higher overall equipment effectiveness and predictable cycle times in serial production.

Geometry and edge offer high precision and tool life

The rhombic 80° insert form combines access to varied cutting positions with favourable cutting edge engagement for shoulder turning and finishing passes. The 0.4 mm corner radius balances edge strength with the ability to achieve fine surface finishes; coupled with a 7° clearance angle, the geometry reduces rubbing and work hardening on ferritic surfaces. These characteristics support dimensional accuracy and surface integrity in precision turning tasks.

Coating and substrate engineered for process security

A coated carbide substrate under the Tiger·tec Silver technology provides a protective barrier against thermal and abrasive wear, extending productive performance under challenging conditions typical for ISO M materials. The specified tolerance class M indicates manufacturing precision of the insert, which helps ensure consistent seating in toolholders and repeatable cutting results across tool changes, contributing to stable, long-term process security.

Application scope and toolholder compatibility

Designed in the common CCMT format, this insert integrates with a wide range of standard turning and boring toolholders, allowing straightforward upgrades in mixed-tool environments. Its focus on stainless steel machining makes it suitable for components requiring corrosion-resistant properties and stringent surface quality. For application matching, select tooling and cutting data that reflect material hardness and component geometry to exploit the insert’s benefits fully.

Contact Metav Werkzeuge for tailored application support and availability of Walter Tools Tiger·tec Silver inserts; technical enquiries by e‑mail at info@metav-werkzeuge.com or by telephone at +49 2822 7131930

Technical data

• SKU: CCMT120404-MM4-WMP20S-WALTER
• Article designation: CCMT120404-MM4 WMP20S
• Type: Drilling/boring indexable insert / turning indexable insert
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver
• Grade: WMP20S

Facts

• Clearance angle: 7°
• Corner radius: 0.4 mm
• Inscribed circle: 12 mm
• Thickness code: 04

Special features

• Chipbreaker: MM4
• Coating: Tiger·tec Silver (coated carbide)
• Tolerance class: M
• Application: Stainless steels (ISO M)
• Shape: Rhombic 80°

FAQ

What materials is this insert best suited for?
The CCMT120404-MM4 WMP20S insert from Walter Tools is optimised for stainless steels (ISO M), providing secure chip control and edge stability in tougher turning and boring applications.

How does the MM4 chipbreaker affect machining?
The MM4 chipbreaker produces short, controlled chips, which reduces the chance of chip entanglement and supports continuous operation when using the Walter Tools insert.

Which toolholders are compatible with this insert format?
Standard toolholders designed for CCMT indexable inserts accept this format; compatibility depends on the holder seat and clamping system but the CCMT form is widely supported.

What performance benefits does the Tiger·tec Silver coating deliver?
The Tiger·tec Silver coating enhances wear resistance and thermal protection, extending edge life and improving process reliability when machining stainless steels with the Walter Tools insert.

Walter Tools: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

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