CPMT 09T308 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated AH725 carbide, proven ISO geometry and straightforward holder compatibility for consistent, high-security turning operations; order directly through Metav Werkzeuge or consult the technical team for suitability.

CPMT 09T308 AH725 ISO turning insert — Tungaloy, PVD-coated carbide, 11° relief

The CPMT 09T308 AH725 is an ISO-format indexable turning insert designed for external and internal turning, offering universal performance for steel and stainless steels when paired with a compatible holder.

• PVD-coated carbide AH725 for steel and stainless
• ISO rhombic plate 09T308, 80° cutting geometry
• 0.8 mm corner radius with one-sided chipbreaker
• Cylindrical hole + single-sided countersink

Consistent process security through robust cutting grade

The AH725 grade is a PVD-coated carbide formulated for universal, breakage-resistant performance across a wide range of steels and stainless steels. Its chemical and mechanical coating properties reduce flank wear and stabilise the cutting edge, which translates into fewer interruptions and more predictable tool life. With an 11° relief angle and ISO rhombic geometry, the design supports repeatable engagement with standard holders, promoting stable cutting conditions and reduced risk of unexpected insert failure.

Fewer insert variants needed — streamlined tool management

Choosing a universal grade such as AH725 lowers the number of specialised inserts required in a workshop. The combination of a one-sided chipbreaker and a 0.8 mm corner radius suits many finishing and medium-cut applications, enabling a compact inventory and faster tooling changes. The PVD coating assists in controlling built-up edge on alloyed steels, so process windows widen and changeovers between materials demand less requalification of cutting data.

Predictable mounting and compatibility for reliable results

The insert follows ISO norms for form, relief, tolerance class, fastening and thickness; the 09T308 designation and rhombic plate shape ensure compatibility when matched to holders with corresponding geometry. The insert is supplied with a cylindrical hole and a single-sided countersink (40°–60°) to secure clamping and maintain seating accuracy. Specified plate thickness (3.97 mm) and standardised dimensions reduce setup times and help achieve repeatable concentricity in both external and internal turning operations.

Efficient chip control and application range

The single-sided chipbreaker is optimised for common turning tasks, guiding chips away from the cutting zone to protect both workpiece surface and tool path. The insert is suitable for precision and production environments where process stability and surface quality are required; smaller tool bodies benefit particularly from the breakage-resistant behaviour of this grade. Where alternating workpiece materials are processed, the AH725 grade provides a pragmatic balance between wear resistance and edge robustness.

For applications requiring reliable, universal turning performance with Tungaloy’s PVD-coated AH725 grade, contact Metav Werkzeuge for ordering details and compatibility advice — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6864953
• Manufacturer SKU: TUN6864953
• SKU: 6864953-Tungaloy
• Model series: ISO turning indexable inserts
• Material: carbide

Core specifications

• ISO designation: 09T308
• Plate size: 09
• Corner radius: 0.8 mm
• Relief angle: 11°
• Cutting geometry angle: 80°
• Plate thickness: 3.97 mm

Special features

• Grade/coating: AH725, PVD-coated carbide
• Plate shape: rhombic
• Chipbreaker: one-sided
• Hole: cylindrical hole with single-sided countersink (40°–60°)
• Typical application: external and internal turning
• System components: ISO insert, matching external holder or boring bar, shim/locking set and replacement screws
• Suitability: steel and stainless steels (universal applications)

FAQ

What materials can be machined with this insert?
The CPMT 09T308 AH725 insert is intended for machining steel and stainless steels; the AH725 grade provides universal, breakage-resistant performance across these materials.

Which holder characteristics are required for correct compatibility?
Compatibility depends on holder form, relief angle, tolerance class, fastening method, size and thickness; the ISO 09T308 designation ensures match with standard holders designed for CPMT inserts.

What is the chipbreaker style and what does it achieve?
The insert features a one-sided chipbreaker that guides chips away from the cut, improving surface finish and protecting the tool path in typical turning operations.

How does the PVD coating benefit production?
The PVD coating on the AH725 grade reduces flank wear and improves edge stability, leading to more predictable tool life and enhanced process security in mixed-material batches.

Is the insert suitable for small tool bodies and high process demands?
Yes; the breakage-resistant grade is particularly beneficial for smaller tools and applications where high process reliability 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.