TCMT 16T304 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated AH725 carbide for broad material coverage, a compact 60° triangular geometry for versatile turning and a secure seating system for stable machining; order directly via Metav Werkzeuge or consult the team for application-specific guidance.

TCMT 16T304 AH725 turning insert — TCMT ISO 16T304 for Turning (Tungaloy)

TCMT 16T304 AH725 is a triangular ISO turning insert designed for reliable external and internal turning in a wide range of steels and stainless steels

Triangle 60° geometry, ISO 16T304
PVD-coated AH725 carbide grade
7° clearance angle for secure seating
0.4 mm corner radius for fine finish

Consistent performance where process security matters

The PVD-coated AH725 grade is a universal, breakout-resistant carbide formulation optimised for machining steel and stainless steel under varying conditions. The coating boosts edge life and wear resistance, while the substrate supports intermittent cuts and small-tool applications. This combination delivers predictable tool life and reduced downtime, translating into measurable productivity gains. For newcomers: PVD refers to a thin, hard surface layer applied by physical vapour deposition to protect the cutting edge and improve abrasion resistance.

Built for accurate clamping and geometric stability

The triangular geometry with a 60° included angle and 7° clearance ensures positive engagement in standard ISO holders and contributes to stable cutting behaviour. The insert is supplied with a central hole featuring a cylindrical bore plus a single-sided countersink (40°–60°), which facilitates precise alignment and repeatable clamping. Tolerances in form, thickness (3.97 mm) and size (16 mm) are defined to secure correct seating; this reduces vibration and enhances surface finish in both external and internal turning operations. Compatibility with the toolholder is determined by shape, clearance, tolerance class, fastening method, size and thickness.

Improved chip control and surface quality with a compact radius

The single-sided chipbreaker and a 0.4 mm corner radius balance effective chip formation with good surface finish for finishing and light semi-finishing passes. The compact radius helps limit cutting forces while preserving edge strength, making it suitable for mixed-batch production where material and cut conditions change. The insert integrates into a standard system consisting of an ISO indexable insert, matching external holder or boring bar, shim/seat and clamping set with replacement screws; this system approach simplifies tool management and reduces set-up time on the shop floor.

Contact Metav Werkzeuge for tailored tooling recommendations and reliable supply of Tungaloy TCMT 16T304 AH725 turning inserts; technical consultants are available to advise on holder choice and cutting data

Technical Data

• Article number: 6856719
• Manufacturer SKU: TUN6856719
• Metav SKU: 6856719-Tungaloy
• Model series: ISO turning inserts
• Application: Turning

Facts

• Insert designation: TCMT16T304
• Size: 16 mm
• Thickness: 3.97 mm
• Included angle: 60°
• Clearance angle: 7°
• Corner radius: 0.4 mm

Special features

• Grade/coating: AH725, PVD-coated carbide
• Chipbreaker: one-sided
• Shape: triangular
• Hole: with cylindrical bore + single-sided countersink (40°–60°)
• Typical system: insert, external holder/boring bar, shim, clamping set, replacement screws

FAQ

What materials is this insert suitable for?
The TCMT 16T304 AH725 insert is designed primarily for steel and stainless steels, offering broad material coverage thanks to the AH725 PVD-coated carbide grade.

How does the AH725 grade affect tool life?
AH725 provides a wear-resistant PVD surface combined with a robust carbide substrate to improve edge stability and extend service life under mixed cutting conditions.

Which holders are compatible with this ISO insert?
Compatibility depends on holder form, clearance angle, tolerance class, fastening type, size and thickness; the insert’s ISO 16T304 geometry and central hole suit standard triangular indexable holders and boring bars.

What cutting tasks suit the 0.4 mm corner radius?
A 0.4 mm radius is ideal for fine finishing and light semi-finishing passes where a balance between surface quality and edge strength is required.

Is the insert supplied with mounting screws?
The recommended system includes the insert, an appropriate holder or boring bar, a shim or seat, a clamping set and replacement screws as standard components for complete tool assembly.

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.