CNMG120408-NMT WS10 G Wendeplatten - Walter Tools

Benefit from the combination of a WS10 coated carbide grade, a robust NMT chipbreaker and a 0.8 mm corner radius for consistent edge life and stable material removal; order the CNMG120408-NMT WS10 indexable turning insert directly via Metav Werkzeuge or consult our advisors for application support.

CNMG120408-NMT WS10 indexable turning insert — 0° negative rake, 0.8 mm corner radius — Walter Tools

The CNMG120408-NMT WS10 is an rhombic 80° indexable turning insert designed for productive, coated-carbide turning across diverse workshop and production environments.

• Coated carbide grade WS10 for broad material range
• Rhombic 80° geometry for versatile turning
• 0.8 mm corner radius for stable edge life
• Negative 0° rake angle for robust roughing

Predictable performance through a dedicated carbide grade

The WS10 designation reflects a coated carbide grade developed for general turning tasks where a balance of wear resistance and toughness is required. With the WS10 coating, the insert offers improved edge stability under intermittent cuts and variable cutting conditions, which translates into fewer indexings and longer productive periods between tool changes. The negative 0° rake contributes to a more robust cutting edge, reducing the risk of chipping during heavier cuts and making the insert particularly suitable for demanding roughing operations where mechanical stability is a priority.

Geometry and chip control that optimise throughput

The rhombic 80° shape paired with the NMT chipbreaker produces controlled chip formation and consistent surface finish. The 0.8 mm corner radius increases the contact area at the cutting edge, supporting higher feed rates without compromising tool life. The chipbreaker design channels swarf reliably, lowering the chance of built-up edge and helping to maintain steady cutting forces. These attributes combine to reduce unplanned interruptions and support a smoother production flow, making the insert a practical choice for manufacturers seeking measurable efficiency gains.

Practical application guidance and handling benefits

The insert’s thickness 04 and size 12 fit common toolholders for standard turning setups, enabling fast replacement and straightforward inventory management. The NMT chipbreaker eases swarf evacuation in both finishing and semi-finishing passes, while the coated carbide substrate tolerates a range of cutting speeds—verify the precise workpiece and cutting data against the product matrix to match optimal parameters. For teams planning process integration, the insert supports consistent cycle times and repeatable results, helping to stabilise machining quality across shifts and operators.

Why this insert fits into a production-minded toolkit

Choosing a solution with a focused carbide grade and proven geometry reduces variability at the machine and supports reproducible component tolerances. The combination of WS10 coating, robust chip control, and the rhombic 80° form offers a pragmatic balance between tool life and productivity. For operations that prioritise predictable outputs and minimal downtime, this insert contributes to overall process reliability and simplifies tool change planning.

For tailored advice on Walter Tools' WS10 indexable turning inserts or to discuss application specifics, contact Metav Werkzeuge — our consultants will assist with selection and supply.

Technical Data

• Article number: CNMG120408-NMT-WS10-WALTER
• Designation: CNMG120408-NMT WS10
• Product type: indexable turning insert

Core specifications

• Size: 12
• Thickness: 04
• Corner radius: 0.8 mm
• Rake angle: 0° (negative)
• Tolerance class: M

Features and materials

• Coating / grade: WS10 (coated carbide)
• Chipbreaker: NMT
• Geometry: Rhombic 80°
• Series: Walter Schneidstoffsorte — Serie offen
• Material: catalogue-dependent

FAQ

What materials is the insert suitable for?
The CNMG120408-NMT WS10 insert is a coated carbide grade intended for a broad range of turning tasks; specific workpiece suitability should be checked against the manufacturer’s product matrix and the series guidance.

How does the NMT chipbreaker affect machining?
The NMT chipbreaker promotes controlled chip formation and evacuation, improving surface finish stability and reducing the likelihood of built-up edge during continuous and interrupted cuts.

Is the 0° negative rake angle suitable for finishing operations?
The negative 0° rake increases edge robustness and is particularly beneficial for roughing and semi-finishing; finish passes may require adjustments to feed and speed or a different insert geometry for optimised surface quality.

What advantage does the 0.8 mm corner radius provide?
A 0.8 mm corner radius enlarges the cutting contact area, enhancing edge strength and enabling higher feeds with reduced risk of chipping, which supports longer periods of productive cutting.

Where can further technical data or cutting parameters be obtained?
Detailed cutting data and application matrices are available from Metav Werkzeuge or the Walter Tools technical documentation; Metav Werkzeuge can assist with recommendations tailored to the specific machining scenario.

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

The Walter AG (brand appearance: Walter Tools) is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Sandvik Group. Protected trademarks and trade names belong to their respective owners. Brand names and protected designations are used solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The offered item is an original, brand-new product from the manufacturer.