CNMG120408-RM5 WMP20G WMP20G Wendeplatten - Walter Tools

Robust cutting performance for stainless steel combined with secure chip control from the RM5 chipbreaker. The Tiger·tec Gold WMP20G coating extends edge life and supports higher process stability; order the CNMG120408-RM5 WMP20G insert directly via Metav Werkzeuge or consult our specialists for application advice.

CNMG120408-RM5 WMP20G indexable turning insert — Tiger·tec Gold, RM5 chipbreaker — Walter Tools

The CNMG120408-RM5 WMP20G is a rhombic 80° indexable turning insert engineered for machining stainless steel under medium to robust cutting conditions

• Tiger·tec Gold coating, WMP20G grade
• RM5 chipbreaker for secure chip control
• Rhombic 80° with 0.8 mm corner radius
• 0° negative rake for robust cutting

Consistent cutting performance for stainless steel

The CNMG120408-RM5 WMP20G insert combines a WMP20G coated carbide grade with the Tiger·tec Gold technology to address the specific challenges of machining stainless steel. These materials tend to be tough and prone to built-up edge; the chosen grade promotes stable chip formation and reduces edge degradation, which translates into longer productive tool life and fewer interruptions. The 0° negative rake increases edge robustness, making the insert suitable for medium to heavy engagement where reliable cutting forces are required. This leads to more predictable cycle times and improved process control on production turning tasks.

Secure chip control for improved surface quality

Built around the RM5 chipbreaker and a 0.8 mm corner radius, the geometry focuses on consistent chip evacuation and balanced cutting forces. The rhombic 80° shape provides good versatility for general turning and allows efficient use of the cutting edge across different toolholder set-ups. A slightly larger corner radius enhances edge strength while helping to maintain a smooth machined finish; this reduces the need for secondary operations and supports higher first-pass quality. Stable chip control also lowers the risk of chatter and workpiece damage during continuous runs.

Process reliability and economical operation

The coated carbide construction and the Tiger·tec Gold surface treatment support wear resistance and thermal stability, contributing to repeatable performance and longer edge life. Together, these factors improve overall efficiency: fewer insert changes, more consistent batch quality and better machine uptime. For production environments where stainless steel parts are common, this combination reduces total process cost per component and increases throughput. If additional machining parameters or holder compatibility details are required, technical advice is available to ensure optimal integration into existing tool systems.

For tailored machining recommendations and availability of the CNMG120408-RM5 WMP20G by Walter Tools, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: CNMG120408-RM5-WMP20G-WALTER
• Designation: CNMG120408-RM5 WMP20G
• Product: Indexable turning insert (Drehwendeschneidplatte)
• Manufacturer: Walter Tools
• Series: Tiger·tec Gold

Core specifications

• Inscribed circle: 12
• Corner radius: 0.8 mm
• Free rake angle: 0° (negative)
• Thickness code: 04
• Shape: Rhombic 80°

Special features

• Chipbreaker: RM5
• Coated carbide grade: WMP20G
• Material group: M
• Suitable for: stainless steel
• Series description: Tiger·tec Gold

FAQ

What materials is this insert suitable for?
The CNMG120408-RM5 WMP20G is designed for machining stainless steel; the WMP20G grade supports secure chip formation when working with stainless-type alloys.

How does the RM5 chipbreaker affect performance?
The RM5 chipbreaker on this insert improves chip control and evacuation, leading to steadier cutting conditions and better surface quality when turning.

Which toolholders fit this insert designation?
This CNMG-style insert fits standard toolholders designed for CNMG geometry; ensure the holder pocket matches the rhombic 80° CNMG form for correct seating and clamping.

What are the main advantages of the Tiger·tec Gold treatment?
Tiger·tec Gold coating on the WMP20G grade enhances wear resistance and thermal stability, extending edge life and supporting consistent production performance.

Hersteller: Walter Tools; Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany; Walter Tools is a global brand for precision metalworking tools. The Walter AG (brand presentation: Walter Tools), headquartered in Tübingen, is one of the world’s leading manufacturers of precision tooling for metalworking and forms part of the Sandvik Group. Protected trademarks and trade names are the property of their respective owners. The referenced article is an original, factory-new item of the manufacturer.