CPMT 090308 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide AH725, reliable chip control and a compact 0.8 mm corner radius for stable turning operations; order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

CPMT 090308 AH725 rhombic indexable turning insert by Tungaloy — PVD-coated carbide, 11° clearance

CPMT 090308 AH725 is a rhombic ISO indexable insert for general turning tasks, designed for secure clamping and consistent chip formation in steel and rostfreier Stahl applications.

• PVD-coated carbide AH725 grade
• Universal grade for steel and rostfreier Stahl
• 0.8 mm corner radius for precise profiles
• 11° clearance angle, rhombic 09 form
• Cylindrical hole with single-sided countersink

Precision and process stability for demanding turning work

The PVD-coated carbide AH725 grade is engineered to combine wear resistance with reliable edge behaviour, which results in consistent component quality during both external and internal turning. The rhombic plate geometry and 11° clearance reduce rubbing and help maintain a stable cutting edge, so machining cycles run with fewer interruptions. For workshops seeking high process security, this insert offers a balance between tool life and finish quality, particularly when alternating between different steels and rostfreier Stahl.

Versatility across common materials with controlled chip formation

Thanks to its single-sided chipbreaker and the universal properties of AH725, the insert is suitable for a broad range of steels and rostfreier Stahl where small to medium-sized tools are used. The design supports predictable chip control under changing cutting conditions, which simplifies setup and reduces the need for frequent tool changes. For operations that prioritise throughput, choosing a grade optimised for mixed-material runs reduces downtime and improves overall productivity.

Mounting, compatibility and dimensional clarity

The ISO designation 090308 refers to the plate format and identifies the insert dimensions for holder compatibility. With a plate thickness of 3.18 mm, corner radius of 0.8 mm and the presence of a cylindrical hole with a 40°–60° single-sided countersink, the insert mates with standard ISO rhombic holders when form, free angle, tolerance class and fastening match. Verifying holder fit by these parameters ensures correct seating and repeatable clamping, minimising vibrations and enabling consistent surface finish.

Practical benefits for workshop efficiency

Using this rhombic insert can shorten index times and contribute to a more predictable tool-change routine, which in turn supports leaner production cycles. The combination of PVD coating and a fracture-resistant substrate reduces edge breakdown, helping to maintain dimensional accuracy across batches. For manufacturers aiming to lower variance and improve first-pass yield, the insert’s characteristics translate directly into fewer reworks and steadier throughput.

Contact Metav Werkzeuge for tailored selection advice on the Tungaloy CPMT 090308 AH725 insert and to confirm holder compatibility — eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical Data

• Article number: 6856775
• Manufacturer SKU: TUN6856775
• SKU: 6856775-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• ISO designation: CPMT090308
• Grade/sort: AH725

Facts

• Angle: 80°
• Clearance angle: 11°
• Corner radius: 0.8 mm
• Plate thickness: 3.18 mm
• Plate size: 09

Special features

• Rhombic plate form
• Cylindrical hole + one-sided countersink (40°–60°)
• PVD-coated carbide (AH725)
• Single-sided chipbreaker
• Intended for external and internal turning

FAQ

What materials is this insert suitable for?
This insert in AH725 grade is designed for machining a range of steels and rostfreier Stahl, offering a good compromise between wear resistance and edge stability for mixed-material production.

How does the plate secure to a holder?
The insert uses a cylindrical hole with a single-sided countersink and matches ISO holder interfaces when form, free angle and tolerance are consistent with the CPMT 090308 AH725 geometry.

Is the corner radius suitable for finishing work?
The 0.8 mm corner radius provides accurate profile control and can be used for fine finishing where small radii contribute to the required surface geometry.

Can the insert be used for both external and internal turning?
Yes, the rhombic form and chipbreaker design support both external and internal turning applications when paired with the correct holder and machining parameters.

What are the main advantages of the AH725 coating and substrate?
AH725’s PVD-coated carbide construction provides improved wear resistance and reliable edge behaviour, enhancing process security during continuous or mixed-operation machining.

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.