CNMM 120408 T9215 Wendeplatten - Tungaloy

Benefit from the combination of Tungaloy's CVD-coated carbide T9215 and the ISO rhombic CNMM120408 geometry for efficient medium‑steel turning; the 0.8 mm corner radius and single‑sided chipbreaker support stable chip control and high productivity. Order directly via Metav Werkzeuge or request application advice from our consultants.

CNMM120408 T9215 Turning Insert — Tungaloy, CVD‑coated carbide for turning

A CNMM120408 T9215 turning insert designed for ISO‑standard external and internal turning, offering robust wear resistance and reliable performance in continuous to lightly interrupted cuts.

• ISO rhombic CNMM insert 80° cutting geometry
• CVD-coated carbide grade T9215 for steel
• 0.8 mm corner radius for reliable edge strength
• Single-sided chipbreaker, cylindrical hole for secure clamping

Consistent productivity for medium‑steel turning

The CVD‑coated T9215 grade is formulated for medium steel machining, combining wear resistance with fracture toughness to maintain cutting edge integrity under sustained loads. The insert’s 80° rhombic geometry converts to a stable cutting attitude that supports longer tool life and consistent surface finish. For production environments where throughput and repeatability matter, this combination reduces the frequency of index changes and helps to maintain cycle‑time targets without compromising component quality.

Predictable chip control and secure clamping

A single‑sided chipbreaker on the insert guides chip formation in typical turning operations, reducing entanglement and easing swarf removal in automated setups. The cylindrical hole provides positive location and clamping when used with compatible ISO holders, so mechanical stability is improved even on interrupted cuts. Explaining terms: a chipbreaker is a groove or profile that encourages short, controllable chips rather than long swarf, which in turn lowers the risk of workpiece damage and machine downtime.

Practical geometry and edge preparation for everyday use

The 0.8 mm corner radius balances edge strength with the ability to achieve fine surface finishes on turned components. A modest corner radius absorbs impact and reduces chipping on heavy cuts, while still allowing acceptable dimensional control on finishing passes. The insert thickness of 4.76 mm and rhombic plate form provide a compact, versatile solution for a wide range of external and internal turning tasks, simplifying tool inventory and holder compatibility checks.

Compatibility and system considerations for workshops

This ISO‑normed insert forms part of a system: the right holder, clamping components and replacement screws are required for safe and efficient use. Compatibility depends on insert form, clearance angle, tolerance class, fastening method, size and thickness; confirming these parameters ensures optimum clamping and heat dissipation. For manufacturing planners and toolroom engineers, standardised inserts such as this one enable predictable tool change routines and reduce the need for bespoke tooling solutions.

For precise medium‑steel turning with Tungaloy’s T9215 grade, contact Metav Werkzeuge for tailored application advice and immediate availability.

Technical Data

• Article number: 6773884
• SKU: 6773884-Tungaloy
• Manufacturer SKU: TUN6773884
• Name: CNMM120408 T9215 Tungaloy‑Wendeplatte

Facts

• Corner radius: 0.8 mm
• Cutting angle: 80°
• Clearance angle: 0°
• Plate thickness: 4.76 mm
• Plate size: 12 mm

Special features

• Coating: CVD
• Material: carbide
• Chipbreaker: single‑sided
• Hole: cylindrical, with hole
• Plate form: rhombic
• Typical application: external and internal turning
• Model series: ISO turning indexable inserts

FAQ

Is this insert suitable for medium‑hard steels?
Yes. The CNMM120408 T9215 insert from Tungaloy is specified for medium‑steel machining and combines wear resistance with fracture toughness to support productive turning.

How does the chipbreaker affect machining performance?
The single‑sided chipbreaker on this insert promotes short, controlled chips, improving swarf management and reducing the risk of chip‑related interruptions during turning operations.

What does the 0.8 mm corner radius mean for finish and tool life?
A 0.8 mm corner radius increases edge strength and resistance to chipping on roughing cuts while still permitting good surface finish on finishing passes when feed and speed are adjusted appropriately.

Can this insert be used in interrupted cutting?
Yes. The T9215 grade and the insert geometry are suitable for continuous to light interrupted cuts; however, clamping rigidity and holder choice must match the application for best results.

Does the cylindrical hole influence clamping options?
The cylindrical hole provides a standardised reference for secure clamping with compatible ISO holders, improving repeatability and mechanical stability during machining.

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.