TPMT 090208 AH6235 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated AH6235 grade, proven edge stability and an ISO-standard triangular form for reliable machining of stainless steels; order the insert directly via Metav Werkzeuge or consult the technical team for holder compatibility.

TPMT090208 AH6235 — ISO triangular turning insert with PVD-coated carbide for stainless-steel turning (Tungaloy)

The TPMT090208 AH6235 is an ISO-standard triangular turning insert designed for external and internal turning operations, offering a PVD-coated carbide grade optimised for interrupted cuts and materials prone to edge chipping.

• ISO triangular insert TPMT090208, 11° relief
• PVD-coated AH6235 grade for stainless steel
• Cylindrical hole with 40°–60° single-side countersink
• 0.8 mm corner radius for robust edge performance

Consistent machining of stainless steels with a tougher grade

The AH6235 grade combines a PVD coating with a tough carbide substrate to reduce chipping in demanding stainless-steel applications. The result is improved edge life and fewer unexpected interruptions during production. This grade is designed specifically for operations where material adhesion, work-hardening and intermittent cuts increase the risk of breakout; choosing a tougher substrate and protective coating mitigates those effects. The coating also assists in thermal and chemical resistance, extending tool life in continuous and semi-continuous turning tasks.

Stable geometry and ISO compatibility for predictable set-up

The triangular TPMT090208 geometry offers three effective cutting corners per index and a compact profile suited to confined tool spaces. Key geometry values — 11° relief angle, 0.8 mm corner radius and 2.38 mm plate thickness — provide a balance between edge strength and accessibility in tight grooves or profiles. The insert features a cylindrical hole with a single-side countersink (40°–60°) to ensure secure clamping and consistent seating in compatible holders. Because compatibility is determined by form, relief, tolerance class, fixing style, size and thickness, the ISO interface simplifies replacement and inventory management across ISO tooling systems.

Practical guidance for selecting chipformers, holders and applications

This insert is supplied with a single-sided chipbreaker, optimised for chip control in both external and internal turning. Typical system components include the ISO insert, a matching external holder or boring bar, a shim/clamping set and spare screws. For interrupted cuts or unstable set-ups, the AH6235 grade is recommended to reduce edge damage; for continuous finishing passes, a finer geometry or different grade may be preferable. For holder selection, match the insert form and clearance angle to the machine rigidity and workpiece clamping. If specific compatibility or machining parameters are required, Metav Werkzeuge’s technical team can advise on the optimal holder and process parameters.

Specify the AH6235 grade from Tungaloy for demanding stainless-steel turning operations and contact Metav Werkzeuge for tailored holder recommendations and supply at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 6890202
• Manufacturer SKU: TUN6890202
• Product SKU: 6890202-Tungaloy
• Designation: TPMT090208 AH6235
• Series: ISO turning inserts
• Manufacturer: Tungaloy

Facts

• Size: 09
• Plate thickness: 2.38 mm
• Corner radius: 0.8 mm
• Relief angle: 11°
• Included angle: 60°
• Countersink angle: 40°–60°

Special features

• Triangular insert form
• PVD-coated carbide grade AH6235
• Single-sided chipbreaker
• Cylindrical hole with single-side countersink
• Designed for external and internal turning
• Suitable for interrupted cuts and materials with increased breakout risk
• System: insert + holder/boring bar + shim/clamping set + spare screws

FAQ

What materials is this insert best suited for?
The AH6235 grade is formulated for stainless steel machining; the TPMT090208 insert from Tungaloy performs well in interrupted cuts and applications with higher breakout risk.

How is the insert clamped in the holder?
The insert uses a cylindrical hole with a single-side countersink (40°–60°) to ensure secure seating and repeatable clamping in compatible ISO holders.

What does the 11° relief angle mean for cutting performance?
An 11° relief angle provides clearance behind the cutting edge to reduce rubbing and improve chip flow, contributing to predictable cutting forces and extended edge life.

Is the insert indexed, and how many cutting edges are available?
The triangular TPMT geometry offers three indexed cutting corners per insert, allowing economical regrinding or rotation of edges within the ISO system.

Which chipbreaker should be chosen for finishing versus roughing?
This SKU is supplied with a single-sided chipbreaker, which balances chip control and edge strength; for fine finishing passes, consider a different chipformer or grade tailored to surface-finish requirements.

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.