CPMT 090308 AH725 Wendeplatten - Tungaloy

High stability and universal applicability result from the PVD-coated AH725 grade and the robust rhombic geometry with a 0.8 mm corner radius, delivering consistent part finish and extended tool life. Combine reliable chip control and ISO compatibility for efficient turning operations. Order the CPMT 090308 AH725 directly via Metav Werkzeuge or consult our technical advisers for application-specific recommendations.

CPMT 090308 AH725 ISO turning insert — PVD-coated, 0.8 mm radius (Tungaloy)

The CPMT 090308 AH725 is a rhombic ISO turning insert designed for external and internal turning, offering process security for machining a range of steels and rostfreier Stahl.

• PVD-coated AH725 grade for steels
• Universal, chip-resistant carbide
• Rhombic CPMT 09 shape, 0.8 mm radius
• Cylindrical hole with countersink 40°–60°

Secure cutting performance for mixed steels

This grade combines a PVD-coated surface with a tough carbide substrate to provide reliable edge strength and wear resistance. The AH725 composition is developed for universal use across Stahl and rostfreier Stahl, reducing the need for frequent insert changes when workpiece materials vary. The engineered coating lowers friction and increases oxidation resistance during elevated cutting temperatures, which translates into steadier cutting forces and a longer usable life for the cutting edge. Such material and coating choices support higher process stability and predictable production output.

Geometry that balances strength and surface quality

The insert’s rhombic form with an 80° main angle and 11° clearance offers a compromise between rigidity and accessibility for varied turning tasks. The 0.8 mm corner radius gives a controlled cutting edge for general turning and light finishing, improving part surface integrity without sacrificing edge life. Because a larger corner radius can distribute cutting loads more evenly, this geometry helps avoid premature edge failure when feeds or engagement angles vary. The specified thickness and shape maintain mechanical stability in standard ISO-compatible holders, contributing to repeatable dimensional results in batch production.

Stable chip control and straightforward integration

Equipped with a single-sided chipbreaker, the insert promotes consistent chip formation and evacuation under typical turning conditions, aiding tool life and machine cleanliness. The cylindrical hole with a single-sided countersink (40°–60°) ensures secure clamping while facilitating simple insert replacement; matching the holder’s form, free angle, tolerance class, fixation and size is sufficient for proper fit. With a 3.18 mm thickness and standard ISO designation, the component integrates smoothly into common turning systems composed of an insert, an appropriate external holder or boring bar, a shim or clamp set, and replacement screws.

For reliable turning performance with Tungaloy’s AH725 grade, contact Metav Werkzeuge for stock status and tailored advice — email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss application details and delivery options.

Technical data

• Article number: 6864894
• Manufacturer item number: 6864894
• Manufacturer SKU: TUN6864894
• SKU: 6864894-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall

Facts

• Angle: 80°
• Clearance (frewinkel): 11°
• Corner radius: 0.8 mm
• Thickness: 3.18 mm
• Size: 09

Special features

• PVD-coated AH725 grade
• Single-sided chipbreaker
• Rhombic insert form (CPMT)
• Hole: cylindrical + one-sided countersink (40°–60°)
• Application: Drehen (turning)
• Suitable for Stahl and rostfreier Stahl
• ISO-compatible insert

FAQ

Which materials can be machined with this insert?
The CPMT 090308 AH725 insert from Tungaloy is optimised for machining a wide variety of Stahl and rostfreier Stahl, offering a balance between wear resistance and fracture toughness for mixed-workpiece environments.

Is the insert compatible with standard ISO turning holders?
Yes; the CPMT geometry and ISO designation mean compatibility depends on matching form, free angle, tolerance class, fixation, size and thickness — the CPMT 090308 AH725 fits common ISO external holders and boring bars when these parameters align.

What benefits does the AH725 grade provide compared with uncoated grades?
AH725’s PVD-coated surface improves oxidation resistance and reduces friction, which extends tool life and enhances process security compared with uncoated carbide grades under comparable turning conditions.

How does the single-sided chipbreaker affect machining?
The single-sided chipbreaker on this insert promotes stable chip formation and evacuation, reducing the risk of built-up edge and improving surface finish during turning operations with the CPMT 090308 AH725.

What operations suit the 0.8 mm corner radius?
A 0.8 mm corner radius is suitable for general turning and light finishing, providing a compromise between edge strength and the ability to produce fine surface finishes without increased burr formation.

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.