CNMA 120408 T505 Wendeplatten - Tungaloy

Benefit from the combination of a CVD-coated carbide T505 grade, an 80° CNMA form and a 0.8 mm corner radius for efficient, reliable cast-iron turning; order the CNMA 120408 T505 insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMA 120408 T505 turning insert (ISO) – Tungaloy

A CNMA 120408 T505 indexable insert designed for economical external and internal turning, optimised for cast-iron applications.

• CVD-coated carbide grade T505
• ISO CNMA 120408, 80° rhombic form
• 0.8 mm corner radius for precision
• Suitable for cast-iron turning applications

Economical, repeatable cutting performance for cast iron

The CVD-coated carbide grade T505 delivers a balance of wear resistance and economy for machining cast iron. The coating reduces adhesion and flank wear, enabling longer tool life and consistent dimensional results under stable machining conditions. Where interrupted cuts or varying stability occur, tool selection should match the setup rigidity and desired cutting speed to maintain productivity and surface quality. The insert form supports predictable chip flow and helps reduce rework in serial production.

ISO compatibility and secure mounting for industrial workflows

Designed to the ISO CNMA standard, the insert’s rhombic geometry and 80° wedge angle facilitate both external and internal turning operations with robust engagement. Compatibility with holders is determined by form, clearance angle (0°), tolerance class, fastening method, size and thickness (4.76 mm). The insert features a cylindrical hole for positive clamping and positioning in a suitable seat. These standardized dimensions simplify tool changeovers and inventory management across production lines.

Durable design that reduces downtime and maintains surface quality

With a 0.8 mm corner radius and a coated carbide substrate, the insert offers a compromise between strength and finish capability, enabling higher metal removal rates without sacrificing edge integrity. The absence of an integrated chipbreaker calls for process-aware parameter selection, but in return the indexable insert provides predictable behaviour and stable wear progression. For many machining cells, this results in fewer interventions, extended tool cycles and a steadier surface finish on workpieces.

Contact Metav Werkzeuge for specification support or to order Tungaloy CNMA 120408 T505 inserts; technical advice and procurement assistance are available at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6793661
• Manufacturer SKU: TUN6793661
• SKU: 6793661-Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Facts

• ISO designation: CNMA120408
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Wedge angle: 80°
• Clearance angle: 0°

Special features

• Material: carbide
• Coating/grade: T505 (CVD-coated)
• Plate form: rhombic
• Hole: with cylindrical hole
• Chipbreaker: none
• Typical application: turning (external and internal)
• Compatibility depends on form, clearance angle, tolerance class, fastening, size and thickness

FAQ

What materials is this insert best suited to machine? The CNMA 120408 T505 insert is designed primarily for machining cast iron; the T505 coating and carbide substrate provide good wear resistance and stable chip formation on ductile and grey cast irons.

Can this insert be used in both external and internal turning? Yes. The ISO CNMA geometry and 80° angle make the insert suitable for both external and internal turning operations when paired with a correctly matched holder.

How is the insert fixed to the holder? The insert has a cylindrical hole for positive clamping; compatibility requires matching form, clearance angle, tolerance class, fastening method, size and thickness with the chosen holder.

Is a chipbreaker integrated in this grade? No, this insert is supplied without a chipbreaker; machining parameters should be adapted to the stability of the setup and the workpiece to ensure effective chip control.

Which identifier should be used when ordering spare inserts? Use the article number 6793661 or the manufacturer SKU TUN6793661 when ordering the Tungaloy CNMA 120408 T505 indexable insert.

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.