TPMT 090208 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp, stable cutting edge and proven PVD coating to maintain process stability when turning stainless steels; the precise 60° geometry and a 0.8 mm corner radius support consistent surface quality and longer tool life. Order directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

TPMT 090208 AH6225 Turning insert — Tungaloy TPMT090208 AH6225

A TPMT090208 AH6225 ISO triangular insert designed for medium-duty turning of stainless steels, offering a balanced combination of edge sharpness and wear resistance for external and internal turning applications

• Triangular ISO insert TPMT 090208 AH6225
• PVD-coated carbide for stainless steels
• 0.8 mm corner radius for controlled cuts
• Cylindrical hole with single countersink

Consistent cutting performance for demanding stainless-steel turning

The PVD-coated carbide grade AH6225 is engineered for a stable, sharp cutting edge under varying conditions, which makes it particularly suitable for machining stainless steels. The coating enhances wear resistance and reduces built-up edge, while the substrate material delivers toughness to withstand interruptions and moderate engagement. As a result, the insert supports reliable chip control with the one-sided chipbreaker, improving repeatability and reducing scrap in serial production. This technical combination reduces the frequency of tool changes and helps to stabilise process windows on conventional and CNC lathes.

Robust geometry and secure clamping for repeatable accuracy

Built to the ISO triangular form with a defined included angle of 60°, this insert features a clearance angle of 11° and a plate thickness of 2.38 mm, creating a rigid cutting edge that resists deflection. The cylindrical hole with single countersink (40°–60°) ensures reproducible seating and torque transmission in compatible holders, so clamping repeatability is high. The precise 0.8 mm corner radius balances edge strength and surface finish, allowing for controlled engagement when turning contours or shoulders. Compatibility is determined by insert shape, relief angle, tolerance class, mounting and size, enabling integration into standard ISO holders and tooling systems.

Production benefits: longer life, steady surface finish and efficient chip control

An insert that combines the AH6225 substrate with a PVD coating achieves extended tool life under medium cutting conditions typical for stainless-steel turning. The one-sided chipbreaker helps produce predictable chips and reduces the risk of tangling on long runs. Together, these features contribute to improved productivity by lowering downtime for tool changes and by delivering a more consistent surface finish, which reduces downstream rework. Selecting the correct chipbreaker and grade for the workpiece material and rigidity of the set-up is recommended to fully exploit these advantages and to keep machining stable across batch production.

For application advice or to request stock and delivery details for the Tungaloy turning insert (SKU TUN6831097 / Article 6831097), contact Metav Werkzeuge quoting the SKU for tailored recommendations and fast processing.

Technical Data

• Article number: 6831097
• Manufacturer SKU: TUN6831097
• Manufacturer: Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Designation: TPMT090208 AH6225

Core specifications

• Size: 09
• Thickness: 2.38 mm
• Corner radius: 0.8 mm
• Clearance angle: 11°
• Included angle: 60°
• Hole style: cylindrical hole + single countersink (40°–60°)

Features and applications

• PVD-coated carbide grade AH6225
• One-sided chipbreaker
• For turning of stainless steels
• ISO triangular plate, compatible with ISO holders
• Suitable for external and internal turning
• Stable cutting edge for medium-duty machining

FAQ

Is this insert suitable for machining stainless steels?
The TPMT090208 AH6225 insert is formulated for stainless steels, the AH6225 grade and PVD coating providing improved wear resistance and edge stability for such materials.

Which holder types are compatible with this insert?
Compatibility is determined by the ISO triangular form, 60° geometry, plate size and thickness; the insert is designed for standard ISO triangular holders that accept TPMT 09 plates.

How does the 0.8 mm corner radius affect machining?
A 0.8 mm corner radius offers a compromise between edge strength and surface finish, enabling controlled engagement on shoulders and external turning while reducing the risk of premature chipping.

Can this insert be used for internal turning as well as external turning?
Yes, the plate is suitable for both external and internal turning operations when mounted in an appropriate holder and when cutting conditions match the grade and geometry.

What is the purpose of the cylindrical hole with countersink?
The cylindrical hole with single countersink (40°–60°) ensures consistent seating and secure clamping, which supports repeatable positioning and stable cutting forces.

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.