CNMM 120408 T9215 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide T9215 for high wear resistance, a rhombic CNMM geometry offering stable engagement, and a robust 0.8 mm corner radius for reliable, productive turning — order the insert conveniently via Metav Werkzeuge or consult our specialists for application support.

CNMM_120408 T9215 — Turning insert CNMM120408 by Tungaloy, rhombic 80°

CNMM_120408 T9215 is an ISO‑standard indexable turning insert designed for general external and internal turning applications in medium steels. Its geometry and grade favour productive, repeatable machining.

• CVD-coated carbide grade T9215
• Rhombic CNMM shape, 80° cutting angle
• 0.8 mm corner radius for robust cuts
• Single-sided chipbreaker with cylindrical hole

High productivity through optimised grade and coating

The combination of a CVD-coated carbide substrate and the T9215 grade provides a balance of wear resistance and fracture resistance that suits medium‑strength steels. This insert is engineered for continuous to slightly interrupted cuts, enabling stable, high‑throughput machining while reducing the need for frequent index changes. The coating improves surface durability under sustained contact, which leads to longer tool life and fewer process interruptions — a direct contribution to cost‑effective production.

Stable cutting engagement from geometry and dimensions

The rhombic CNMM geometry with its 80° included angle and 0° relief angle offers a neutral, secure seating in compatible holders, supporting consistent chip formation and reliable cutting forces. The 0.8 mm corner radius increases edge strength for tougher engagement, and the 4.76 mm plate thickness contributes to overall rigidity. Combined with the single‑sided chipbreaker and the cylindrical locating hole, the insert achieves dependable clamping and controlled chip flow, which benefits surface finish and repeatability in serial production.

ISO compatibility and flexible process integration

As an ISO‑standard turning insert, the designation CNMM120408 simplifies selection and inventory management across tool families and holders. Compatibility with a holder depends on form, relief angle, tolerance class, fastening method, size and thickness — all standardised parameters that aid rapid tool changeover. Select the appropriate chipbreaker and insert grade according to workpiece material and machining stability to unlock optimal cutting conditions; the insert is particularly suited to medium steel applications where a balance of productivity and tool life is required.

Practical benefits for workshops and production lines

Using a standardised, robust insert reduces setup complexity and enhances process reliability. The product’s design focusses on minimising downtime and ensuring consistent results across long runs. The neutral geometry and proven coating technology provide confidence in repeatable component quality, while the sturdy corner radius and thickness reduce edge chipping during transient loads — practical advantages for both jobbing shops and volume production.

For application advice, compatibility checks or supply of Tungaloy CNMM120408 T9215 inserts, contact Metav Werkzeuge — our technical team is available to assist with selection and procurement.

Technical Data

• Article number: 6774090
• Manufacturer SKU: TUN6774090
• SKU: 6774090-Tungaloy
• Model series: ISO‑Drehwendeschneidplatten
• Designation: CNMM120408 T9215 Tungaloy

Facts

• Insert designation: CNMM120408
• ISO code: 120408
• Thickness: 4.76 mm
• Size: 12
• Corner radius: 0.8 mm
• Relief angle: 0°
• Included angle: 80°

Special features

• Material: carbide
• Coating/grade: CVD‑coated, T9215
• Chipbreaker: single‑sided
• Hole: with cylindrical hole
• Shape: rhombic
• Application: turning (external and internal)
• System: ISO indexable insert, suitable for ISO holders and clamping sets

FAQ

Is this insert suitable for medium steel machining?
Yes. The CNMM120408 T9215 insert from Tungaloy is specifically selected for medium steel applications, combining the CVD coating and grade T9215 to deliver wear and fracture resistance for continuous to slightly interrupted cuts.

Which holder features are required for correct compatibility?
Compatibility depends on matching the insert form, relief angle, tolerance class, fastening method, size and thickness; the CNMM120408 form requires an ISO‑compatible holder designed for rhombic CNMM inserts and secure clamping with a cylindrical hole.

How does the T9215 grade affect tool life?
The T9215 CVD‑coated carbide provides improved wear resistance while maintaining fracture resistance, which extends effective tool life under typical turning loads and reduces the frequency of index changes.

Can this insert manage interrupted cuts?
The insert is designed for continuous to slightly interrupted cuts; for heavier interruptions, choose tooling and parameters that account for increased impact and consider different grades or geometry as needed.

What chip control can be expected with this insert?
With its single‑sided chipbreaker and rhombic geometry, the insert offers controlled chip formation for common turning operations; selection of the specific chipbreaker style should match the workpiece material and machining strategy.

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.