CNMG 120408 T9215 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide T9215 and the CNMG120408 geometry for reliable tool life and consistent chip control; order directly via Metav Werkzeuge or consult our specialists for matching holders and inserts.

CNMG 120408 T9215 Turning insert CNMG120408 Tungaloy – 80° rhombic, CVD-coated carbide

A CNMG120408 T9215 ISO turning insert engineered for external and internal turning in medium steel, featuring a double-sided chipbreaker and secure cylindrical-hole clamping.

• ISO CNMG form, 80° rhombic geometry
• CVD-coated carbide T9215 for medium steel
• Double-sided chipbreaker for stable chips
• 0.8 mm corner radius, 4.76 mm thickness

Longer tool life through CVD-coated carbide performance

The combination of a CVD-coated hardmetal grade and the T9215 specification provides markedly higher wear resistance and improved fracture toughness compared with uncoated grades. This behaviour translates into longer tool life in continuous to lightly interrupted cuts when machining medium steel, reducing changeover frequency and increasing uptime. The CVD layer contributes to consistent cutting-edge behaviour and helps maintain a predictable surface finish, which supports stable process planning and lower total machining cost.

Precise geometry and ISO compatibility for secure clamping

The 80° rhombic form, 0.8 mm corner radius and 0° relief angle define a predictable contact geometry that matches ISO standards for turning inserts; compatibility with holders is determined by form, relief angle, tolerance class, attachment, size and thickness. The insert’s cylindrical hole and double-sided design allow quick indexing and secure fastening in matched holders, ensuring repeatable positioning and stable cutting forces. This mechanical reliability supports higher feed rates under steady conditions without compromising part accuracy.

Optimised chip control and productivity in workshop turning

The integrated double-sided chipbreaker is tailored for medium steel applications and promotes controlled chip formation across a range of cutting conditions. Selecting the correct chipbreaker and grade based on workpiece material and cutting strategy enables efficient chip evacuation, safer handling and reduced secondary operations. Combined with the insert’s robust carbide substrate, these features help to maintain consistent component quality while supporting higher productivity in series and batch turning.

For tailored cutting solutions and genuine Tungaloy inserts contact Metav Werkzeuge for technical advice or to place an order — email info@metav-werkzeuge.com or call +49 2822 7131930.

Technical Data

• Article number: 6796026
• Manufacturer SKU: TUN6796026
• Manufacturer item number: 6796026
• Manufacturer: Tungaloy

Facts

• Insert form: CNMG (rhombic, 80°)
• ISO designation: 120408
• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Relief (rake) angle: 0°
• Hole: cylindrical
• Indexing: double-sided

Special features

• Material: carbide
• Coating/grade: T9215 (CVD-coated)
• Application: turning (external and internal)
• Typical workpiece: medium steel
• Cutting condition: continuous to lightly interrupted cuts
• System: ISO turning insert compatible with matched holder and clamping set

FAQ

What materials is this insert best suited for?
The CNMG120408 T9215 insert from Tungaloy is optimised for medium steel machining; the T9215 CVD coating balances wear resistance and toughness for productive turning.

How is the insert fixed in a holder?
The insert uses a cylindrical hole and is designed for ISO-compatible holders; correct mounting depends on form, relief angle, tolerance class, size and thickness to ensure secure clamping.

Can this insert be indexed to use both sides?
Yes, the double-sided design allows indexing, enabling two cutting edges per insert and supporting efficient utilisation in production.

What benefit does the 0.8 mm corner radius provide?
A 0.8 mm corner radius offers a compromise between edge strength and surface finish, improving resistance to chipping while maintaining acceptable part geometry for turning operations.

Is the grade suitable for interrupted cuts?
The T9215 grade is intended for continuous to lightly interrupted cutting; for heavily interrupted cuts, a different grade or geometry might be preferable.

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.