TCMT 16T308 AH725 Wendeplatten - Tungaloy

The combination of a PVD-coated cemented carbide grade and ISO triangular geometry ensures consistent cutting performance and reduced tool changes for mixed turning tasks. Choose this insert for reliable chip control, extended edge life and straightforward holder compatibility — order directly via Metav Werkzeuge or consult our specialists for application-specific advice.

TCMT 16T308 AH725 — ISO triangular turning insert, PVD-coated carbide — Tungaloy

The TCMT16T308 AH725 is an ISO-format triangular turning insert designed for external and internal turning, optimised for applications requiring high process security and reliable edge stability.

• ISO triangular insert TCMT 16T308, 60°
• PVD-coated carbide AH725 for universal use
• Suitable for steel and rostfreier Stahl
• 0.8 mm corner radius, with hole and countersink

Improved process security for mixed-material turning

The AH725 grade combines a wear-resistant substrate with a uniform PVD coating, delivering stable chip formation across varying steels and rostfreier Stahl. This universality reduces the need for frequent grade changes when batches include different workpiece materials, which increases uptime and simplifies tooling logistics. The result is a measurable improvement in process reliability and a lower probability of unexpected tool failures during small-tool or high-precision operations.

Geometry engineered for repeatable chip control and clamping

The triangular ISO profile with a 60° included angle and a 0.8 mm corner radius offers a balance between edge strength and surface finish. The insert is supplied with a cylindrical hole and a single-side countersink (40°–60°) for secure, repeatable clamping in standard holders. A relief angle of 7° and a plate thickness of 3.97 mm contribute to consistent seat engagement and clearance, helping to avoid chatter and to maintain dimensional stability over longer runs. Compatibility checks should include form, clearance angle, tolerance class, fastening and plate thickness to guarantee correct seating.

Coating and substrate that extend service intervals

The combination of a hardened substrate and a PVD-coated cemented carbide surface provides a hard, chemically stable cutting edge that resists built-up edge and abrasive wear. This leads to longer edge life under interrupted cuts and variable feed conditions common in turning. For productivity-focused shops, this translates into fewer insert changes and more parts per setup, improving labour utilisation and reducing indirect production costs without compromising part quality.

System-level benefits and practical handling

Supplied as part of the ISO turning insert system, the item integrates with standard external holders, boring bars and the usual shim/clamp sets and replacement screws. The ISO designation simplifies procurement and storage, while the single-side chipbreaker supports predictable chip flow in both external and internal turning. Where higher process security is required, this insert supports smaller tooling setups and quick indexability, aiding both repeatable finishes and simplified tool management across batch and one-off production.

Contact Metav Werkzeuge for an application review or to request tailored recommendations for the Tungaloy AH725 grade and compatible holders — Metav Werkzeuge provides technical advice and rapid delivery options.

Technical data

• Manufacturer article number: 6856671
• SKU: 6856671-Tungaloy
• Manufacturer SKU: TUN6856671
• Manufacturer: Tungaloy

Numbers / Core technical data

• ISO designation: 16T308
• Insert size: 16 mm
• Plate thickness: 3.97 mm
• Corner radius: 0.8 mm
• Relief angle: 7°
• Included angle: 60°

Designs / Special features

• Shape: triangular
• Substrate/coating: PVD-coated cemented carbide
• Grade: AH725
• Chipbreaker: single-sided
• Hole: with cylindrical hole and single-side countersink (40°–60°)
• Application: turning (external and internal)
• Model series: ISO turning inserts
• Material: carbide

FAQ

What materials is the TCMT16T308 AH725 best suited for?
The TCMT16T308 AH725 is formulated for machining various steels and rostfreier Stahl, offering stable chip formation and reliable edge life across mixed batches.

How does the PVD coating benefit cutting performance?
The PVD-coated cemented carbide on the TCMT16T308 reduces abrasive wear and helps prevent built-up edge, extending service life and maintaining surface finish under typical turning conditions.

Which holders are compatible with this insert?
Compatibility depends on holder form, clearance angle, tolerance class, fastening and plate thickness; the TCMT16T308 fits standard ISO triangular holders designed for 16T308 inserts.

Can the insert be used for internal turning operations?
Yes, the insert is suitable for both external and internal turning when installed in an appropriate boring bar or holder designed for ISO triangular inserts.

What is the correct way to identify the insert when ordering replacements?
Use the ISO designation TCMT16T308, the grade AH725, and the manufacturer article number 6856671 or SKU 6856671-Tungaloy to ensure an exact match.

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.