CNMG 120408 T9215 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide T9215, a precise 0.8 mm corner radius and ISO compatibility for efficient medium-steel turning; order the CNMG120408 insert directly via Metav Werkzeuge or consult our advisors for machining recommendations.

CNMG 120408 T9215 — Turning insert (ISO) by Tungaloy

CNMG120408 T9215 is an ISO-standard indexable insert engineered for medium-steel turning in external and internal operations.

• CVD-coated carbide T9215 for medium steel productivity
• Rhombic CNMG geometry, 80° lead angle
• 0.8 mm corner radius for reliable edge strength
• Double-sided chipbreaker with cylindrical hole

Consistent cutting performance for medium-steel turning

The CVD-coated carbide grade T9215 combines high wear resistance with good fracture toughness, making it well suited to medium-steel machining where productivity and tool life matter. The coating reduces flank and crater wear under continuous and lightly interrupted cuts, so machining cycles remain productive over longer tool lives. Choosing the matching chipbreaker and grade helps stabilise cutting forces and improves surface finish while keeping tool-change intervals predictable.

Precise geometry and secure fit for repeatable results

The CNMG120408 format uses a rhombic form with an 80° lead angle and a 0.8 mm corner radius, offering a balance between strength and edge definition. The insert is double-sided and features a cylindrical hole for positive clamping; compatibility with holders is determined by form, clearance angle, tolerance class, fastening, size and thickness. The standardised dimensions (12 mm inscribed circle, 4.76 mm thickness) simplify tool selection and repeatability across toolholders and boring bars, supporting stable chip control and machine-to-machine consistency.

System approach and application benefits

This indexable insert is designed to work within a complete turning system: ISO insert, matching external holder or boring bar, a support shim/clamping set and replacement screws. Such a system ensures accurate seat contact and uniform clamp force, reducing vibration and potential edge failure. For operations that demand constant throughput, the combination of T9215 grade and the double-sided chipbreaker supports productive machining while reducing downtime for insert changes.

For machining advice or to procure Tungaloy CNMG120408 T9215 inserts, contact Metav Werkzeuge for tailored recommendations and availability — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6773956
• Manufacturer SKU: TUN6773956
• Brand: Tungaloy
• Type designation: CNMG120408
• Material: Hartmetall

Facts

• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Inscribed circle: 12 mm
• Lead angle: 80°
• Clearance angle: 0°

Special features

• CVD-coated carbide (T9215)
• Rhombic plate geometry (CNMG)
• Cylindrical hole for clamping
• Double-sided chipbreaker
• ISO-standard turning insert
• Intended for continuous to light interrupted cuts
• System components: matching holder/boring bar, shim/clamp set, spare screws

FAQ

What materials is this insert optimised for?
The CNMG120408 T9215 insert is optimised for medium-steel turning; the T9215 CVD-coated carbide grade provides wear resistance and toughness tailored to that material class.

How does the 0.8 mm corner radius affect performance?
A 0.8 mm corner radius offers improved edge strength for stable cutting and better surface finishes while maintaining acceptable cutting forces for general turning operations.

Is the insert compatible with standard ISO toolholders?
Yes, the CNMG120408 follows ISO geometry; compatibility depends on holder form, clearance angle, tolerance class, fastening method, size and thickness.

What cutting conditions suit this grade best?
The T9215 grade is intended for productive turning under continuous to lightly interrupted cuts, where a balance of wear resistance and toughness yields longer tool life and consistent part finish.

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.