TNMG 160408 AH725 Wendeplatten - Tungaloy

Reliable, ISO‑compliant turning performance with the PVD‑coated AH725 grade and a 60° triangular geometry delivers stable chip control and process security; benefit from a robust, double‑sided design and compatibility with standard holders — order the TNMG160408 AH725 turning insert directly via Metav Werkzeuge or ask the consultants for integration advice.

TNMG160408 AH725 TNMG turning insert for turning (Tungaloy) — 60° triangular, PVD-coated carbide

A TNMG160408 AH725 ISO‑standard triangular insert engineered for external and internal turning, combining universal, breakage‑resistant grade performance with consistent chip control.

• PVD-coated carbide AH725 grade
• 60° triangular geometry for versatile cuts
• 0.8 mm nose radius for fine surface finish
• Double-sided chipbreaker, cylindrical hole

High process security for mixed-material turning

The combination of a PVD‑coated layer and a carbide (Hartmetall) substrate gives a measurable advantage in mixed‑material production environments. The AH725 grade is formulated to resist chipping and maintain edge integrity when alternating between Stahl and rostfreier Stahl, reducing unplanned downtime and scrap rates. Because the insert is ISO‑standard, it supports rapid replacement in stocked holders, which shortens changeover time and contributes to predictable cycle times on batch runs.

Easy integration with existing ISO holders and tooling systems

Designed to the ISO series, the insert’s form, 0° relief, tolerance class and fastening geometry ensure compatibility with widely used external holders and boring bars. The 60° triangular shape and the specified 4.76 mm thickness provide secure clamping and repeatable seating, which helps to maintain concentricity and minimise vibration in lighter tool setups. This results in steadier cutting conditions and a reduced need for corrective machining, especially on smaller tools or less rigid setups.

Grade and chip control that reduce process interruptions

The AH725 grade, paired with a double‑sided chipbreaker, improves chip formation and evacuation during both roughing and finishing operations. The result is fewer interruptions from built-up edge or erratic chips, particularly when machining varying cross‑sections or interrupted cuts. The 0.8 mm nose radius supports a balance between tool life and surface quality, making it suitable for customers aiming for consistent part tolerances and reduced inspection rework.

Geometry and dimensions optimised for precision and long service life

The triangular TNMG160408 insert with its cylindrical hole and precise dimensions (size 16 mm, thickness 4.76 mm) offers stable seat location and reproducible tool life. The insert’s form factor allows cost‑effective indexing of multiple cutting edges, extending usable life per insert and improving overall tooling economy. Where high process reliability is a priority, this geometry assists in delivering repeatable results and predictable maintenance intervals.

Contact Metav Werkzeuge today for tailored advice on integrating the AH725 grade into production and to order original Tungaloy TNMG160408 turning inserts via Metav Werkzeuge.

Technical data

• Article number: 6862516-Tungaloy
• Manufacturer article number: 6862516
• Manufacturer SKU: TUN6862516
• ISO designation: 160408
• Type designation: TNMG160408

Core data

• Size: 16 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Included angle: 60°
• Relief angle: 0°
• Double-sided: yes

Special features

• Coating: PVD
• Grade: AH725
• Material: carbide (Hartmetall)
• Application: external and internal turning
• Chipbreaker: double-sided
• Hole style: cylindrical hole
• Plate form: triangular

FAQ

What materials is this insert suited for?
The TNMG160408 AH725 insert is optimised for machining Stahl and rostfreier Stahl and performs well where material mixes are frequent.

How does the AH725 grade benefit production?
AH725, a PVD‑coated carbide grade, offers robust edge strength and consistent chip behaviour, which improves uptime and process security for turning operations.

Is the insert compatible with standard ISO holders?
Yes, the insert follows ISO dimensions and is compatible with holders that match the form, relief angle, tolerance class and fastening method specified for TNMG inserts.

What surface quality can be expected with a 0.8 mm nose radius?
A 0.8 mm nose radius balances surface finish and tool life, delivering good part quality for both semi‑finishing and finishing passes when combined with correct cutting parameters.

How many cutting edges are available per insert?
The triangular geometry with a double‑sided chipbreaker provides multiple usable edges for indexing; the actual count depends on the specific insert orientation and use case.

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.