TNMG 220408 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp yet stable cutting edge, PVD-coated carbide grade AH6225 and ISO compatibility for consistent mid-range turning of stainless steel; order directly via Metav Werkzeuge or consult our advisers for application-specific setup and clamping recommendations.

TNMG220408 AH6225 TNMG indexable insert for turning by Tungaloy — PVD-coated carbide, 0° clearance

The TNMG220408 AH6225 is an ISO-format triangular indexable insert designed for external and internal turning, optimised for stainless steel and medium cutting conditions.

• PVD-coated carbide grade AH6225
• Optimised for stainless steel
• 22 mm triangular insert, 0.8 mm corner radius
• Double-sided chipbreaker, cylindrical hole

Consistent cutting performance for stainless steel

The PVD-coated carbide grade AH6225 provides a balance between a sharp cutting edge and edge stability, which translates into steady material removal rates during medium turning operations. The coating improves thermal resistance and wear behaviour, reducing flank wear under fluctuating conditions. For production environments that require repeatable results, the combination of coating and substrate minimises tool changes and contributes to predictable component tolerances and surface quality.

System compatibility that reduces setup time

Designed to ISO dimensions, the insert aligns with standard holders and boring bars when form, clearance angle, tolerance class, fastening and thickness match the toolholder specification. Key dimensions — 22 mm plate size, 4.76 mm thickness and 60° included angle — ensure straightforward replacement in standard tool systems. The 0° clearance and 0.8 mm corner radius support a controlled cutting geometry that can improve edge life in interrupted cuts and reduce rework in batch production runs.

Practical application and machining benefits

This insert is suitable for both external and internal turning; the double-sided chipbreaker provides two usable cutting edges, lowering inventory cost per cutting edge. The cylindrical locating hole supports accurate seating and consistent clamping force in the pocket, decreasing the risk of vibration-induced edge chipping. Selecting the appropriate chipbreaker and machining parameters tailored to workpiece stability and feed rates will extend service life while maintaining surface finish requirements.

Productivity and process reliability in everyday use

Using an ISO-standard insert such as this one simplifies tool management and procurement. The PVD layer and carbide substrate are tuned for mid-range operations on stainless steel, offering a compromise of edge sharpness and wear resistance that benefits cycle time and overall tool cost per part. For workshops seeking steady throughput with fewer interventions, the insert’s configuration supports reliable chip control and repeatable clamping — factors that directly impact machining uptime and finished-part conformity.

For application advice or to secure supply of the TNMG220408 AH6225 insert from Tungaloy, contact Metav Werkzeuge today for tailored recommendations and fast delivery: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: 6903207
• SKU: 6903207-Tungaloy
• Manufacturer article number: 6903207

Core specifications

• Designation / ISO: TNMG220408
• Plate size: 22 mm
• Thickness: 4.76 mm
• Included angle: 60°
• Clearance (relief) angle: 0°
• Corner radius: 0.8 mm

Materials & features

• Material: carbide
• Coating / grade: PVD, AH6225
• Geometry: triangular insert
• Chipbreaker: double-sided
• Hole: with cylindrical locating hole
• Application: turning (external and internal)
• System: ISO-format indexable insert

FAQ

What materials is this insert intended for?
The TNMG220408 AH6225 insert is designed primarily for machining stainless steel; the AH6225 grade and PVD coating support medium cutting conditions and variable process requirements.

How many usable edges does the insert provide?
Thanks to the double-sided chipbreaker, the insert offers multiple effective cutting edges before replacement of the insert is required.

Which toolholders are compatible with this ISO insert?
Compatibility depends on holder form, tolerance class, fastening and pocket geometry; the insert follows ISO sizing so it fits standard TNMG pockets when the holder matches TNMG220408 dimensions.

What advantages does the PVD coating deliver?
The PVD coating on the AH6225 grade increases thermal and wear resistance, improving edge life and enabling more consistent surface finish during medium cutting operations on stainless steel.

Is the insert suitable for internal boring as well as external turning?
Yes, the insert is suitable for both external and internal turning applications, provided the holder and setup offer sufficient rigidity and correct orientation.

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.