TPMT 16T308 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of universal PVD-coated carbide grade AH725, robust chip control with the PS chipbreaker, and precision geometry for stable, repeatable turning results — order directly via Metav Werkzeuge or request advice from our consultants.

TPMT16T308-PS AH725 — ISO turning insert TPMT 16T308 for turning (0.8 mm radius, PS chipbreaker) by Tungaloy

A TPMT16T308-PS AH725 ISO turning insert designed for reliable external and internal turning where process security and consistent chip formation are required

• Triangular ISO insert TPMT16T308-PS
• AH725 PVD-coated carbide, universal for steel
• 0.8 mm corner radius for smooth profiling
• 11° clearance angle for secure cutting
• Cylindrical hole with single-sided 40°–60° countersink

Stable cutting with a universal, PVD-coated grade

The AH725 grade is a PVD-coated carbide engineered as a universal, fracture-resistant option for machining both steel and rostfreier Stahl. This composition supports reliable chip formation and enhanced wear resistance under mixed-material production conditions. The chipbreaker PS is optimised to control chip flow for a broad range of feed rates, which reduces the likelihood of edge chipping during light to medium cutting. For workshops processing variable batch sizes, the combination of this grade and chipbreaker improves process security and reduces unplanned tool changes, leading to more predictable cycle times.

Geometry engineered for repeatable surface quality

The insert’s triangular form and ISO 16T308 designation deliver an included angle of 60°, while the 0.8 mm corner radius balances profile strength with surface finish. A 3.97 mm thickness increases edge support for interrupted cuts, and the 11° clearance angle minimises rubbing on the flank face, preserving dimensional accuracy. These geometry choices make the insert suitable for contouring, profiling and modest semi-finishing, where a controlled contact area and consistent chip section are required to achieve repeatable part tolerances and improved surface appearance.

Designed for secure clamping and system compatibility

Compatibility with a toolholder is determined by insert form, clearance angle, tolerance class, fixing method, size and thickness; therefore the cylindrical hole with single-sided countersink (40°–60°) ensures a secure location and consistent seat in compatible TPMT holders or boring bars. The cutting system typically comprises the ISO insert, the matching external holder or boring bar, and a shim/clamp set with replacement screws. When specifying holders, attention to tolerance and seat geometry is essential to maintain the insert’s intended cutting angle and repeatability across production batches.

Operational benefits that support productivity

For external and internal turning operations, the TPMT16T308-PS AH725 insert offers a pragmatic balance of tool life, chip control and versatility. The universal AH725 grade reduces the need for frequent index changes when switching between different steel alloys, while the PS chipbreaker helps maintain continuous machining under varying feed conditions. This results in fewer interruptions, improved uptime and consistent batch quality — advantages that translate directly into smoother production flow and lower total machining cost per part.

Contact Metav Werkzeuge for tailored application advice on Tungaloy turning inserts and to confirm holder compatibility and delivery options

Technical data

• Article number: 6856684
• Manufacturer SKU: TUN6856684
• SKU: 6856684-Tungaloy
• Name: TPMT16T308-PS AH725

Facts

• Size: 16
• Thickness: 3.97 mm
• Corner radius: 0.8 mm
• Clearance angle: 11°
• Included angle: 60°

Special features

• Material: Carbide (Hartmetall)
• Coating/grade: AH725, PVD
• Chipbreaker: PS
• Shape: Triangular
• Hole: Cylindrical hole with single-sided countersink (40°–60°)
• Application: Turning (external and internal)

FAQ

What materials is this insert intended for?
The AH725 grade is formulated for machining steel and rostfreier Stahl, providing a universal option where material mixes occur and process reliability is important.

What does the PS chipbreaker do?
The PS chipbreaker governs chip shape and evacuation, promoting controlled chips and reduced edge chipping when using the TPMT16T308-PS insert.

Which holder characteristics must be checked for compatibility?
Compatibility is based on insert form, clearance angle, tolerance class, fixing method, size and thickness; the TPMT16T308-PS requires a holder matching the ISO seat for triangular TPMT inserts with a cylindrical hole and countersink.

Is the 0.8 mm corner radius suitable for finishing?
A 0.8 mm corner radius offers a compromise between profile accuracy and edge strength; it is suitable for light finishing and profiling while supporting improved edge stability over very small radii.

Can the insert cope with interrupted cuts?
The combination of 3.97 mm thickness and the AH725 grade gives the insert resistance to edge breakouts, making it capable of handling moderate interruptions in turning operations.

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.