CPMT 090308 AH6235 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated carbide grade AH6235, a defined 0.8 mm nose radius and ISO CPMT090308 geometry for reliable turning of stainless steels and interrupted cuts; order directly via Metav Werkzeuge or request expert advice from our consultants.

CPMT090308 AH6235 Tungaloy turning insert — ISO CPMT 090308 for external and internal turning

CPMT090308 AH6235 is an ISO-format, PVD-coated carbide turning insert designed for robust performance in stainless-steel turning and interrupted cutting applications.

• ISO CPMT090308 geometry, rhombic 09 form
• PVD-coated carbide grade AH6235
• 11° clearance angle for stable cutting
• Cylindrical hole with 40°–60° countersink

Consistent performance for stainless-steel turning

The CPMT090308 AH6235 insert delivers a balance of toughness and wear resistance through its PVD-coated carbide substrate and the AH6235 cutting grade, optimised for stainless steel and operations prone to built-up edge or notch wear. The tougher coating chemistry reduces chipping during interrupted cuts and increases edge stability, which results in fewer unplanned tool changes and more predictable cycle times. This makes the component particularly suitable for series production where process consistency matters.

Secure seating and reliable clamping minimise setup variables

Designed with a cylindrical hole and one-sided countersink (40°–60°), the indexable plate ensures positive seating and repeatable clamping forces in compatible holders. The rhombic 09 form and the defined 11° clearance angle support stable contact between insert and toolholder, reducing vibration and improving surface finish on external and internal turning operations. Clear information on holder compatibility (form, relief, tolerance class, fastening, size and thickness) simplifies selection and reduces setup time.

Geometry and edge preparations for interrupted cuts

The insert’s 0.8 mm nose radius and the one-sided chipbreaker are aimed at combining good edge strength with chip control under varying depths of cut. The modest nose radius supports dimensional control while the chipbreaker directs swarf for easier removal, lowering the risk of re-cutting and workpiece damage. For applications with frequent entry and exit or interrupted profiles, this geometry helps maintain a stable cutting edge and reduces the likelihood of catastrophic edge failure.

Practical choice for system integration and productivity

As part of the ISO turning insert system, the plate works with matching external holders, adaptor pads and clamping sets; the standardised dimensions (ISO 090308, 3.18 mm thickness) allow rapid replacement and compatibility checks. The grade’s resistance to chipping means longer effective tool life in many stainless-steel operations, improving throughput and decreasing tooling logistics. Choosing the correct chipbreaker and holder combination will optimise process reliability and cost-efficiency.

Contact Metav Werkzeuge for tailored application advice on the CPMT090308 AH6235 Tungaloy turning insert and confirmation of holder compatibility — eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Manufacturer article number: 6890170
• Manufacturer SKU: TUN6890170
• SKU: 6890170-Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Facts

• ISO designation: 090308
• Size: 09
• Thickness: 3.18 mm
• Nose radius: 0.8 mm
• Clearance angle: 11°
• Plate angle: 80°

Special features

• PVD-coated carbide, grade AH6235
• Rhombic plate form (09)
• One-sided chipbreaker
• Cylindrical hole with one-sided countersink (40°–60°)
• Application: Turning; suited to stainless steel and interrupted cuts
• Compatible with ISO-style holders; clamping depends on form, tolerance and fastening

FAQ

What materials is this insert suitable for?
The CPMT090308 AH6235 Tungaloy turning insert is formulated for stainless steel machining and performs well in interrupted cuts or where edge breakout risk is elevated.

How does the AH6235 grade behave under interrupted cutting?
AH6235 is a tougher, PVD-coated carbide grade that resists chipping and offers improved edge stability during interrupted cutting, reducing unplanned tool changes.

Which holder features are required for correct compatibility?
Holder compatibility depends on insert form, 11° clearance angle, tolerance class, fastening method, size (09) and thickness (3.18 mm); the cylindrical hole and countersink ensure secure seating in matching ISO holders.

Can this insert be used for both external and internal turning?
Yes — the ISO CPMT090308 geometry and chip control features make the insert suitable for both external and internal turning applications when paired with the correct holder.

What practical benefits result from the 0.8 mm nose radius?
A 0.8 mm nose radius provides a compromise between edge strength and accuracy, supporting dimensional control while improving resistance to premature edge wear in roughing and finishing passes.

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.