TCMT 16T308 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp, stable cutting edge, ISO compatibility and proven PVD-coated AH6225 grade for consistent mid-range machining of stainless steels; order directly via Metav Werkzeuge or ask the consultants for technical guidance.

TCMT 16T308 AH6225 Tungaloy – ISO turning insert for external and internal turning, triangular 60° geometry

The TCMT 16T308 AH6225 is an ISO-standard indexable insert designed for turning operations, offering a balanced combination of PVD-coated carbide performance and reliable chip control for stainless steel machining.

• ISO triangular insert, 60° geometry
• PVD-coated carbide AH6225 grade
• 0.8 mm nose radius for versatile finishes
• Cylindrical hole with 40°–60° countersink

Precise geometry that delivers stable, repeatable turning results

The triangular ISO insert geometry with a 60° included angle and a 0.8 mm nose radius provides a practical balance between profile detail and edge strength. This geometry reduces the tendency for chatter in moderate cutting conditions, which in turn supports a more consistent surface finish and predictable tool life. For shops aiming to maintain steady cycle times and dimensional repeatability, the combination of a small but sturdy nose radius and an acute insert angle enables accurate profiling and plunge cuts without sacrificing edge stability.

Robust PVD-coated carbide grade tuned for stainless steel

The PVD-coated carbide AH6225 offers a sharp, wear-resistant cutting edge that is optimised for machining stainless steel under varying conditions. The coating enhances thermal stability and reduces built-up edge formation, which is a common issue when turning stainless alloys. As a result, mid-range feeds and speeds can be run with confidence, lowering the frequency of index changes and contributing to overall process efficiency. The grade was selected to balance edge sharpness and toughness, helping to maintain a consistent cut over longer tool life.

ISO compatibility and simple mounting for quick tool changes

The insert conforms to ISO standards, so compatibility with holders is determined by form, 7° relief, tolerance class, clamping method, size and thickness. The central cylindrical hole with a single-sided countersink (40°–60°) ensures secure location in conventional pockets and stable clamping with screws or clamps. This standardisation shortens set-up times and reduces the need for bespoke tooling, enabling production lines to switch inserts rapidly while maintaining correct datum and runout characteristics.

Practical benefits: chip control, stability and surface quality

Equipped with a single-sided chipbreaker, the insert helps to control chip flow during both external and internal turning, improving swarf handling and reducing the risk of surface damage. The 3.97 mm thickness adds body rigidity to the insert, which supports consistent cutting conditions and dampens minor vibrations. Together with the 7° clearance and PVD coating, these features translate into improved process stability, fewer unplanned interruptions and a higher probability of achieving the required surface finish in one pass.

For machining stainless steel with the reliability of Tungaloy technology, contact Metav Werkzeuge for ordering and technical advice – eMail: info@metav-werkzeuge.com · Tel: +49 2822 7131930

Technical data

• Article number: 6829875
• SKU: 6829875-Tungaloy
• Manufacturer SKU: TUN6829875
• Model series: ISO turning inserts

Facts

• Insert size: 16 mm
• Thickness: 3.97 mm
• Nose radius: 0.8 mm
• Relief angle: 7°
• Included angle: 60°

Special features

• Material: carbide
• Coating / grade: PVD-coated AH6225
• Shape: triangular
• Hole: cylindrical hole + single-sided countersink (40°–60°)
• Chipbreaker: single-sided
• Application: turning (external and internal)
• Typical system: ISO insert, compatible holder, clamping set and screws

FAQ

What materials is this insert designed for?
The AH6225 grade is formulated for stainless steel machining; the TCMT 16T308 insert performs well in mid-range turning operations where a sharp, stable cutting edge is required.

How does the chipbreaker affect machining performance?
The single-sided chipbreaker on the insert promotes predictable chip formation and evacuation, improving swarf control and reducing the risk of surface blemishes during continuous turning.

Which holders are compatible with this insert?
Compatibility depends on insert form, relief angle, tolerance class, clamping type, size and thickness; the ISO designation 16T308 ensures fit with standard triangular pockets designed for that geometry.

How does the PVD coating benefit tool life?
The PVD-coated carbide AH6225 enhances thermal resistance and reduces adhesion of workpiece material to the edge, which helps to extend index life and maintain consistent cutting performance.

Is the insert suitable for internal turning?
Yes, the triangular shape and 60° geometry, together with the secure hole and countersink locating, make the insert appropriate for both external and internal turning applications.

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.