CNMG120412-MW5 WMP20S WMP20S Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Silver coating, the WMP20S carbide grade and the MW5 chipbreaker for reliable chip formation and extended edge life. Order the CNMG120412-MW5 WMP20S directly via Metav Werkzeuge or contact our consultants for application-specific advice.

CNMG120412-MW5 WMP20S – Turning insert for stainless steel, Tiger·tec Silver by Walter Tools

A CNMG120412-MW5 WMP20S turning insert engineered for robust stainless-steel machining in moderate to heavy cutting conditions

• Tiger·tec Silver coating for thermal resistance
• WMP20S grade optimised for stainless steel
• MW5 chipbreaker for secure chip control
• Rhombic 80° shape with r1.2 corner radius

Consistent performance on stainless steel components

The combination of the Tiger·tec Silver coating and the WMP20S grade provides a coated carbide system designed to cope with the challenges of machining stainless steel. These materials tend to be tough and generate heat; the coating improves thermal resistance while the substrate supports a stable cutting edge. The result is reduced flank wear and more predictable tool life, which helps maintain production throughput and lowers the risk of unplanned downtime.

Improved process reliability and surface quality

The insert geometry—rhombic 80° form with a 1.2 mm corner radius and a 0° (negative) relief angle—combines strength and versatility. The MW5 chipbreaker promotes controlled chip formation and evacuation under medium to robust cutting conditions, which leads to more consistent surface finishes and fewer interruptions for chip clearing. This translates into higher first-pass quality and less rework, supporting lean manufacturing goals.

Practical suitability and handling in production environments

This cutting grade is targeted at ISO group M applications, explicitly suitable for stainless steel components in demanding sectors. The insert is compatible with standard CNMG toolholders and is available as CNMG120412 format with the MW5 chipformer. Its design supports stable machining when higher cutting forces and temperatures occur, offering a balanced compromise between robustness and finish. For adoptive setups, pairing the insert with appropriate coolant and stable clamping yields the best combination of tool life and process security.

Contact Metav Werkzeuge for tailored recommendations on Walter Tools turning inserts and assistance selecting the right grade for specific stainless-steel applications — reach our experts at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• SKU: CNMG120412-MW5-WMP20S-WALTER
• Article: CNMG120412-MW5 WMP20S
• Brand: Walter Tools
• Product type: Turning insert

Key measurements

• Insert size: 12
• Corner radius: 1.2 mm
• Relief angle: 0° (negative)
• Plate thickness: 04
• Insert shape: Rhombic 80°
• Chipbreaker: MW5

Features & suitability

• Grade: WMP20S
• Coating / series: Tiger·tec Silver
• Substrate: coated carbide
• Material group: M (stainless steel)
• Application: moderate to robust stainless-steel machining

FAQ

What materials is this insert best suited for?
The CNMG120412-MW5 WMP20S from Walter Tools is optimised for stainless steel (ISO group M) and performs reliably under medium to robust cutting conditions.

How does the MW5 chipbreaker affect machining?
The MW5 chipbreaker on this Walter Tools insert produces controlled chips and improves evacuation, which helps maintain consistent surface quality and reduces interruptions.

Is the insert suitable for heavy roughing passes?
Yes, the combination of the rhombic 80° geometry, r1.2 corner radius and 0° negative relief supports stable cutting in more demanding roughing scenarios.

Which coating technology is used and what benefit does it bring?
The Tiger·tec Silver coating increases thermal resistance and wear performance, enabling better edge stability when machining heat-prone alloys such as stainless steel.

Can this insert be used in standard CNMG toolholders?
The CNMG120412-MW5 WMP20S is supplied in the CNMG120412 format and is compatible with standard CNMG toolholders designed for this insert form.

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

The Walter AG (brand: Walter Tools) with headquarters in Tübingen belongs to the global Sandvik group and is a leading manufacturer of precision tools for metalworking. Protected trademarks and trade names remain the property of their respective owners. Brand names are mentioned for clarification purposes only. The offered item is an original, factory-new product of the manufacturer.