CNMM 120408 T9225 Wendeplatten - Tungaloy

Benefit from the CVD-coated carbide T9225 and the ISO CNMM120408 geometry for consistent, productive medium-to-heavy turning. The combination of robust grade, a 0.8 mm corner radius, and a rhombic form ensures reliable chip control and repeatable tool life. Order the insert directly via Metav Werkzeuge or ask the consultants for application-specific advice.

CNMM 120408 T9225 – turning insert by Tungaloy, rhombic, 0.8 mm radius

The CNMM120408 T9225 is an ISO-standard indexable turning insert designed for medium-to-heavy steel turning, featuring a rhombic geometry and a one-sided chipbreaker for stable cutting under variable conditions.

• ISO CNMM geometry, rhombic form
• CVD-coated carbide T9225 grade
• 0.8 mm corner radius for robust edges
• Cylindrical hole; compatible with ISO holders

Consistent productivity through a robust carbide grade

The ISO-design insert combines a CVD-coated carbide substrate with the T9225 universal grade to deliver balanced toughness and wear resistance for demanding turning tasks. This composition is aimed at applications where interrupted cuts or changing engagement require extra toughness rather than the finest finishing grade. The result is fewer edge failures and longer intervals between index changes, which translates into improved uptime and a more predictable production rhythm. The specification supports medium-to-heavy machining of steel, where sustained cutting forces and chip control are critical.

Geometry and clamping ensure precise, repeatable performance

The rhombic plate form with its 0.8 mm corner radius and 0° clearance is engineered for versatility on external and internal turning operations. The insert's compatibility with ISO-standard holders is defined by its shape, free clearance, tolerance class and thickness (4.76 mm), so correct seating and clamping achieve repeatable positioning and stable cutting. The presence of a cylindrical hole facilitates secure fastening and easy replacement of spare screws and shims, reducing setup time and minimising the risk of misalignment during tool changes.

Practical guidance for application and material selection

Select the one-sided chipbreaker and grade combination for steels where moderate to heavy cuts are common and chip control must be reliable. The insert is intended primarily for turning operations on steel; its balanced CVD coating supports good flank and crater wear resistance under typical machining temperatures. For best results, match the insert form and T9225 grade to holder rigidity and cutting data: a stable set-up and appropriate feed rates extend tool life and enhance surface quality. Where surface finish and dimensional tolerance are decisive, adjust cutting parameters rather than shifting to a more brittle grade.

Contact Metav Werkzeuge for tailored recommendations on tooling set-ups and to order the Tungaloy CNMM120408 T9225 insert; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6781235
• Manufacturer article number: TUN6781235
• Label: CNMM120408 T9225 Tungaloy-Wendeplatte
• Manufacturer: Tungaloy
• ISO designation: CNMM120408
• Grade: T9225

Facts

• Corner radius: 0.8 mm
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Clearance angle: 0°
• Included hole: with hole (cylindrical)
• Included angle: 80°

Special features

• Material: carbide
• Coating: CVD-coated
• Chipbreaker: one-sided
• Plate form: rhombic
• Typical application: turning (external and internal)
• Compatibility: ISO holders, shims and fastening screws

FAQ

What materials is this insert suitable for?
The CNMM120408 T9225 insert is optimised for steel turning; the CVD-coated carbide and T9225 grade provide toughness and wear resistance appropriate for medium-to-heavy steel machining.

How does the 0.8 mm corner radius affect performance?
A 0.8 mm corner radius increases edge strength and impact resistance during interrupted cuts, improving edge life for the CNMM120408 insert without compromising general versatility.

Is the insert compatible with standard ISO holders?
Yes, the rhombic form and ISO CNMM geometry ensure compatibility with ISO-standard external and internal turning holders when matching thickness and tolerance class.

What benefits does the T9225 grade deliver compared with finishing grades?
T9225 is a robust universal grade designed for changing engagement and higher toughness demands; it favours tool life and process stability over the very fine edge required for mirror finishes.

Does the cylindrical hole influence clamping reliability?
The cylindrical hole provides stable, repeatable clamping when used with appropriate screws and shims, reducing runout and ensuring consistent positioning for the 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.