TPMT 16T304 AH725 Wendeplatten - Tungaloy

Benefit from a universal, PVD-coated carbide AH725 grade and ISO compatibility for consistent machining of Stahl and rostfreier Stahl; the combination of fracture-resistant geometry and an optimised PSF chipbreaker supports secure, repeatable turning operations. Order the insert via Metav Werkzeuge or consult the technical advisers for application-specific guidance.

TPMT 16T304 AH725 TPMT16T304-PSF turning insert – PVD-coated carbide, 60°

The TPMT16T304-PSF AH725 is an ISO-standard triangular indexable insert designed for external and internal turning, offering a fracture-resistant grade for mixed-material production on Stahl and rostfreier Stahl.

• ISO triangular insert TPMT 16T304 AH725
• PVD-coated carbide grade AH725
• Optimised PSF chipbreaker for secure cutting
• 0.4 mm corner radius with 11° relief angle

Consistent edge life and broad material coverage for production stability

The combination of a PVD-coated carbide substrate and the AH725 grade delivers a balance of wear resistance and toughness, making the insert suitable across a wide range of components made from Stahl and rostfreier Stahl. The coating improves flank wear resistance while the fracture-resistant composition reduces the risk of unexpected edge chipping during interrupted cuts. For operations that demand dependable performance with smaller tools and mixed batches, this geometry supports longer effective tool life and reduces regrinding frequency, contributing to stable process windows and lower overall tooling cost per part.

Faster set-up and repeatable seating reduce downtime

Designed to the ISO specification, the geometry and tolerance of the triangular insert ensure precise fitment in compatible holders; compatibility is determined by form, 11° relief angle, tolerance class, clamping method, size and thickness. The insert’s hole configuration — a cylindrical bore with a single-sided countersink (40°–60°) — provides secure seating and repeatable axial location for reliable torque transfer and consistent chip evacuation. In practice, this means quicker index changes, predictable tool offsets and fewer re‑adjustments between jobs, which supports efficient production cycles and predictable quality.

Better chip control and surface finish through optimised geometry

The PSF chipbreaker and a 0.4 mm corner radius are selected to promote stable chip formation and reduced built-up edge when turning both external and internal contours. The 60° triangular shape provides versatile cutting angles for a range of operations while the 3.97 mm thickness and robust clamping geometry maintain rigidity under radial loads. For finishing passes, the chipbreaker aids in producing consistent surface quality; for roughing, the same geometry supports controlled material removal with reduced risk of workpiece damage. When combined with an appropriate holder and correct cutting parameters, the insert improves cycle times and reduces scrap rates.

Practical system considerations and application guidance

The insert is intended to be used as part of a system that includes a matching external holder or boring bar, underlay/clamp set and replacement screws. Select the chipbreaker and grade with regard to the workpiece material, machining strategy and available machine stability. For unstable setups or interrupted cuts, the AH725 grade offers the fracture resistance required; for high-speed, uninterrupted turning on stable machines, the grade still offers dependable wear resistance thanks to the PVD coating. Technical advisers can provide parameter ranges and holder recommendations for specific machines and materials.

Contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 to discuss Tungaloy inserts and secure the TPMT16T304-PSF AH725 for production-critical turning tasks

Technical data

• Manufacturer article number: 6864949
• SKU: 6864949-Tungaloy
• Manufacturer SKU: TUN6864949
• Designation: TPMT16T304-PSF AH725

Facts

• Insert size (inscribed circle): 16 mm
• Thickness: 3.97 mm
• Corner radius: 0.4 mm
• Relief angle: 11°
• Included angle: 60°

Special features

• Shape: triangular
• Hole: cylindrical hole + single-sided countersink (40°–60°)
• Grade/coating: AH725, PVD-coated carbide
• Chipbreaker: PSF
• Application: turning (external and internal)
• Suitable materials: Stahl, rostfreier Stahl
• System: ISO insert compatible with ISO holders, boring bars, underlay/clamp set and replacement screws

FAQ

What materials is this insert best suited for?
The TPMT16T304-PSF AH725 insert is formulated for use on Stahl and rostfreier Stahl, with the AH725 grade offering a universal, fracture-resistant performance across varied batches.

Which chipbreaker is fitted and what is its benefit?
The insert features a PSF chipbreaker, which is optimised for secure chip formation and improved surface finish in both finishing and medium-duty cutting operations.

How does the insert locate in the holder?
Location is ensured via the cylindrical hole with a single-sided countersink (40°–60°), providing repeatable axial seating and secure clamping when used with the correct ISO-compatible holder and clamp set.

What cutting geometry should be expected for fine finishing?
With a 0.4 mm corner radius and 60° triangular geometry, the insert can achieve good surface quality on finish passes while retaining sufficient robustness for light roughing when appropriate feeds and speeds are applied.

Is the grade suitable for interrupted cuts or unstable setups?
Yes; the AH725 grade is designed to be fracture-resistant and is a suitable choice for operations with intermittent cuts or where higher process security is required.

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.