TPMT 16T312 AH725 Wendeplatten - Tungaloy

Take advantage of a PVD-coated carbide grade that combines reliable process security and broad material coverage; the universal AH725 insert ensures consistent cutting performance for steel and stainless steels and integrates easily into ISO holders — order directly via Metav Werkzeuge or consult our specialists for holder compatibility.

TPMT 16T312 AH725 — ISO turning insert for turning, 60° (Tungaloy)

TPMT16T312-PM AH725 is an ISO-standard triangular turning insert designed for general external and internal turning applications, offering a universal PVD-coated grade for steel and stainless steels.

• Universal PVD-coated carbide AH725
• 60° triangular insert for general turning
• 1.2 mm nose radius for defined finishing
• 3.97 mm plate thickness for rigidity

Consistent process stability for mixed-material machining

The AH725 grade is formulated as a PVD-coated carbide to provide consistent performance across a wide range of steels and stainless steels, making it a practical choice when batches include varying materials. The combination of a robust substrate and a wear-resistant coating improves edge life and reduces unexpected tool changes, which directly contributes to higher machine uptime and lower per-part costs. In routine turning operations the chipbreaker PM geometry supports stable chip formation and evacuation, reducing risk of workpiece damage and helping to maintain cycle-time consistency. This predictable behaviour is especially valuable in small-tool setups and in operations where process reliability is a priority.

Secure clamping and geometry that supports surface quality

A triangular form with a nominal included angle of 60° and a 1.2 mm nose radius delivers a balance between strength and finishing capability: the geometry resists deflection under load while enabling a defined cutting edge for repeatable surface results. The insert’s 3.97 mm thickness and central hole with a cylindrical seat plus a single-sided countersink (40°–60°) ensure positive seating and reliable fixing in compatible ISO-compatible holders. Proper selection of holder form, clearance angle and tolerance class is essential for optimal fit; these mechanical parameters determine the insert’s seating, runout behaviour and, ultimately, achievable surface finish. Where dimensional precision matters, the stable geometry helps maintain part tolerances with fewer corrective passes.

Versatile grade and coating for productivity and ease of use

The combination of the AH725 grade and the PM chipbreaker delivers an economical, universal solution for everyday turning tasks. The PVD surface treatment enhances resistance to built-up edge and wear on intermittent cuts and in mixed-material environments, supporting longer tool life in many common turning scenarios. Users benefit from straightforward tool management: selecting the correct chipbreaker and grade minimises the need for frequent grade swaps when facing different steels. For manufacturers aiming to streamline tooling stocks while maintaining process security, this insert offers a compelling compromise between performance and simplicity. In addition, ISO standardisation guarantees interchangeability with the appropriate external or boring holders, provided form, free angle, tolerance, fixation, size and thickness match the required holder specifications.

Request a tailored holder compatibility check or order the Tungaloy AH725 grade through Metav Werkzeuge for improved process reliability and straightforward tool management.

Technical data

• Article number: 6856732
• Manufacturer SKU: TUN6856732
• Merchant SKU: 6856732-Tungaloy
• Label: TPMT16T312-PM AH725

Measurements

• Insert size: 16
• Thickness: 3.97 mm
• Included angle: 60°
• Nose radius: 1.2 mm
• Relief angle: 11°
• Countersink angle: 40°–60°

Features / Applications

• Material: cemented carbide
• Coating: PVD (grade AH725)
• Chipbreaker: PM
• Shape: triangular, with central hole
• Application: external and internal turning
• Suitable for: steel and stainless steels
• System composition: ISO insert, compatible holder, clamp/seat and spare fixing screws

FAQ

What materials is this insert suitable for? This turning insert is specified for steel and stainless steels; the AH725 PVD-coated carbide grade provides a universal performance profile for these materials.

How is holder compatibility ensured? Compatibility depends on holder form, free angle, tolerance class, fixation method, insert size and thickness; match these parameters to the ISO designation 16T312 for correct seating.

What does the PM chipbreaker provide in practice? The PM chipbreaker supports controlled chip formation and evacuation during common turning operations, improving process security and reducing the risk of built-up edge.

Can the insert be used for both external and internal turning? Yes; the triangular ISO form and the specified geometry make it suitable for both external and internal turning when used with the correct holder.

Which feature most affects surface finish? Edge geometry — especially nose radius (1.2 mm) and the 60° included angle — plays a primary role in achievable surface quality and dimensional repeatability.

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.