TPMT 16T312 AH6225 Wendeplatten - Tungaloy

Take advantage of a PVD-coated carbide grade (AH6225) and a PM chipbreaker that together deliver consistent machining performance on stainless steels; the combination of a sharp, stable cutting edge and ISO compatibility ensures efficient, predictable turning operations. Order the inserts directly via Metav Werkzeuge or consult their specialists for holder matching and tooling advice.

TPMT 16T312 AH6225 (TPMT16T312-PM) – ISO turning insert for turning, 60° triangle – Tungaloy

A TPMT16T312-PM AH6225 ISO-standard triangular insert engineered for external and internal turning, optimised for medium cuts in stainless steels.

• PVD-coated carbide for durable cutting
• Sharp and stable cutting edge
• 60° triangular form for versatile turning
• PM chipbreaker optimised for stainless steels

Improved process efficiency with a modern carbide grade

The AH6225 grade combines a fine-grain carbide substrate with a PVD coating to reduce built-up edge and improve flank wear resistance during machining of stainless steels. This results in longer tool life and lower cost-per-part in medium-duty turning operations. By choosing a grade that balances a sharp edge with edge stability, the insert maintains consistent performance across changing cutting conditions, reducing unplanned tool changes and promoting a more predictable production flow.

ISO compatibility and secure clamping reduce setup time

Designed as an ISO turning indexable insert, compatibility with holders is defined by the insert form, 11° clearance angle, tolerance class, fastening method, size and 3.97 mm thickness. The insert’s geometry — a 60° included angle and a cylindrical hole with one-sided countersink (40°–60°) — ensures reliable clamping and repeatable positioning in standard triangular toolholders. This compatibility simplifies tooling choices, shortens setup, and supports modular tool assemblies consisting of an ISO insert, compatible external holder or boring bar, and the appropriate clamp or backup plate.

Predictable chip control and surface quality in variable conditions

The PM chipbreaker is tailored to the behaviour of stainless steels, promoting short, controllable chips that evacuate reliably under interrupted or varying cuts. The 1.2 mm corner radius provides a balance between edge strength and surface finish, supporting medium machining while limiting vibration and chatter. Together with the triangular geometry, the chip control strategy helps achieve consistent surface roughness and reduces secondary finishing. For customers seeking reliable repeatability, these design choices translate into reduced machining downtime and improved overall productivity.

Choose the Tungaloy AH6225 grade for reliable stainless-steel turning and contact Metav Werkzeuge for precise holder matching and fast supply

Technical Data

• Article number: 6903345
• Manufacturer SKU: TUN6903345
• SKU: 6903345-Tungaloy
• Label: TPMT16T312-PM AH6225
• Model series: ISO turning indexable inserts

Core specifications

• Size: 16 mm
• Thickness: 3.97 mm
• Included angle: 60°
• Corner radius: 1.2 mm
• Clearance angle: 11°
• Hole: with hole; cylindrical hole + one-sided countersink (40°–60°)

Design & features

• Material: carbide
• Coating: PVD
• Grade: AH6225
• Chipbreaker: PM
• Shape: triangular
• Application: turning, suitable for stainless steels

FAQ

Which materials is this insert designed to machine?
The TPMT16T312-PM AH6225 insert is formulated primarily for stainless steels and performs well in medium turning tasks where a balance of sharpness and edge stability is required.

How is compatibility with toolholders ensured?
Compatibility depends on the ISO design, form and dimensions: the 16T312 designation, 60° triangular form, 3.97 mm thickness, 11° clearance and the hole/countersink geometry determine fit with standard triangular holders and clamping systems.

What benefit does the PM chipbreaker provide?
The PM chipbreaker promotes predictable chip formation and evacuation, especially when machining stainless steels, which helps protect the cutting edge and improve surface finish under variable cutting conditions.

How does the AH6225 grade affect tool life and performance?
The AH6225 grade, combining a robust carbide substrate with a PVD coating, offers a sharp but stable cutting edge that extends tool life, reduces built-up edge and maintains consistent performance in changing machining scenarios.

Is the insert indexable and suitable for internal and external turning?
As an ISO triangular indexable insert, it is intended for both external and internal turning; rotation to fresh edges is possible depending on the holder and clamping 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.