CNMM 120402 DX120 Wendeplatten - Tungaloy

Take advantage of the combination of PCD cutting performance and ISO compatibility for faster cycle times and predictable tool life; select the matching chipbreaker and holder to ensure consistent chip control. Order the inserts directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

CNMM120402 DX120 CNMM ISO turning insert (PCD, with cylindrical hole) by Tungaloy

CNMM120402 DX120 is an ISO-form turning insert engineered for high-speed machining of aluminium and other non-ferrous materials.

• PCD cutting edge for high cutting speeds
• Designed for aluminium and non-ferrous metals
• ISO-form CNMM 120402 for wide holder compatibility
• Long tool life and consistent chip control

Increase throughput with polycrystalline diamond performance

The PCD cutting layer in this insert enables significantly higher cutting speeds when machining aluminium and similar materials, reducing cycle times while maintaining surface quality. The DX120 grade is formulated for abrasive non-metals and non-ferrous alloys, delivering long tool life and low flank wear compared with conventional carbide grades. For production environments focused on cost per part, the greater longevity of the diamond edge translates into fewer tool changes and more stable processes, which improves overall equipment effectiveness.

Seamless integration into ISO tooling systems

Built to the ISO CNMM 120402 form, the insert matches standard CNMM pockets when the holder geometry, clearance, tolerance class, clamping and thickness are compatible. The presence of a cylindrical hole permits secure screw clamping in suitable holders, while the 12 mm size and 4.76 mm thickness offer a robust support area that reduces vibration in many turning operations. This standardised format simplifies stock management and reduces set-up variability, enabling faster changeovers and reliable repeatability across batches.

Stable chips and predictable surface finish

The DIA chipbreaker geometry provides controlled chip formation for secure evacuation and consistent contact conditions at the cutting edge. Combined with the hard PCD surface on a carbide backing, this construction supports high feed rates with improved dimensional stability and enhanced surface appearance. For intermittent cuts or sections with variable cross-section, the chip control contributes to fewer interruptions and reduced risk of built-up edge, which in turn lowers rework and inspection effort.

Practical selection and application guidelines

Select the chipbreaker and grade according to workpiece material, machining strategy and machine stability; the DX120 grade is optimised for turning of aluminium, non-ferrous metals and abrasive non-metals but is not intended for hardened steels. Ensure holder compatibility by checking the seat form, clearance angle and clamping method before mounting the insert. When correctly matched to the application, the combination of PCD cutting edge and ISO conformity improves cycle consistency and tool-change predictability, supporting more efficient process planning.

Discuss your machining requirements with Metav Werkzeuge to specify the right DX120 PCD inserts and holder combinations; call +49 2822 7131930 or email info@metav-werkzeuge.com for a technical consultation

Technical data

• Article number: 6822155
• Manufacturer SKU: TUN6822155
• Product designation: CNMM120402-DIA DX120 Tungaloy insert
• Series: ISO turning inserts

Core specifications

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.2 mm
• Included hole: with cylindrical hole
• Insert angle: 80°
• Clearance angle: 0°

Materials & features

• Cutting material: PCD (polycrystalline diamond), grade DX120
• Substrate material: carbide
• Chipbreaker: DIA
• Shape: rhombic (CNMM)
• Application: turning
• Model series: ISO turning inserts
• Manufacturer: Tungaloy

FAQ

Is this insert suitable for aluminium machining?
Yes. The CNMM120402-DIA DX120 Tungaloy turning insert uses a PCD cutting edge designed specifically for aluminium, non-ferrous metals and abrasive non-metals, enabling high cutting speeds and extended tool life (SKU TUN6822155).

How is compatibility with a holder determined?
Compatibility depends on the insert form, clearance angle, tolerance class, clamping method, size and thickness. The ISO CNMM 120402 form and the cylindrical hole allow use in holders that accept CNMM inserts and screw clamping.

Can the DX120 grade be used for steel or hardened materials?
No. The DX120 PCD grade is optimised for non-ferrous and abrasive non-metals; it is not suitable for machining hardened steels or high-alloy steels where alternative carbide or coated solutions are required.

What chip control can be expected from the insert?
The DIA chipbreaker provides stable chip formation and evacuation, improving surface finish and reducing interruptions in continuous turning operations when paired with the correct feeds and speeds.

How is the insert secured in the tool?
The insert is supplied with a cylindrical hole for screw clamping; ensure the selected holder matches the CNMM seat and clamping arrangement to guarantee secure fixation and optimal performance.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.