TNMG 220408 AH120 Wendeplatten - Tungaloy

Take advantage of a wear-resistant, PVD-coated carbide grade that combines a sharp cutting edge with process security; the triangular TNMG220408 geometry with a 0.8 mm corner radius offers stable chip formation and multiple usable edges. Order directly via Metav Werkzeuge or consult the team for matching holders and clamping sets to ensure a smooth turning operation.

TNMG 220408 AH120 Tungaloy turning insert — ISO triangular, PVD-coated carbide for turning

A TNMG220408 AH120 indexable insert designed for ISO-spec turning applications, suited to external and internal turning where a sharp cutting edge and process security are required

• PVD-coated carbide AH120 grade
• ISO TNMG220408 triangular insert
• 0° relief angle for positive cutting
• Double-sided chipbreaker, cylindrical hole

High-performance grade for process-stable turning

The AH120 grade is a PVD-coated carbide developed for wear resistance and resistance to chipping in turning tasks. The coating improves surface hardness and thermal stability, which extends edge life under intermittent loads and variable cutting conditions. As a consequence, production runs benefit from fewer interruptions for index changes and more consistent component dimensions. This combination of a sharp cutting edge and robust substrate supports higher process security in serial and batch production.

Precise geometry and straightforward holder compatibility

The triangular TNMG220408 form and the specified 60° geometry make the insert compatible with a wide range of ISO toolholders when form, relief angle, tolerance class, fastening method, size and thickness are matched. The 0° relief angle supports a positive rake configuration for reduced cutting forces, while the 0.8 mm corner radius balances edge strength with surface finish requirements. The presence of a cylindrical central hole ensures repeatable clamping with standard screws and backing pads, simplifying integration into existing turning systems.

Operational efficiency through multi-edge design and chip control

A double-sided chipbreaker provides two cutting edges per side, increasing edge economy and reducing tooling costs per component. The triangular shape yields multiple indexable edges, so replacement intervals are extended in practical use. The engineered chipbreaker improves chip formation and evacuation, lowering the risk of built-up edge and unstable chip behaviour. For workshops seeking reliable indexable inserts for general turning, this plate contributes to stable cycle times and predictable reconditioning intervals.

For expert advice on matching the TNMG220408 AH120 insert to holders, cutting parameters or to check current availability, contact Metav Werkzeuge for tailored technical support and supply options.

Technical Data

• Article number: 6808633
• Manufacturer SKU: TUN6808633
• Merchant SKU: 6808633-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall
• Coating: PVD-beschichtet

Data

• ISO designation: 220408
• Designation: TNMG220408
• Grade: AH120
• Shape: triangular
• Size: 22 mm
• Thickness: 4.76 mm
• Included angle: 60°
• Relief angle: 0°
• Corner radius: 0.8 mm

Special features

• Double-sided chipbreaker
• Cylindrical central hole
• PVD coating
• Carbide substrate
• Suitable for external and internal turning
• ISO-standard indexable insert
• Compatible with matching holders and clamping sets

FAQ

What turning tasks is this insert suited for?
The TNMG220408 AH120 insert is intended for external and internal turning where a sharp cutting edge and high process security are needed; the AH120 grade is optimised for wear resistance and chipping resistance.

How many usable edges does the insert provide?
With its triangular shape and double-sided chipbreaker, the insert supplies multiple indexable cutting edges, extending productive edge life before replacement.

Which holders fit the TNMG220408 format?
Compatibility depends on the holder form, relief angle, tolerance class, fastening method, size and thickness; the TNMG220408 geometry follows ISO standards for straightforward matching.

What is the benefit of the PVD coating on this insert?
The PVD coating on the AH120 grade enhances surface hardness and thermal stability, improving wear resistance and extending tool life under varying cutting conditions.

How does the 0.8 mm corner radius affect performance?
A 0.8 mm radius provides a compromise between edge strength and surface finish, supporting stable cutting and improved component surface quality in many turning operations.

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.