CPMT 090304 AH6225 Wendeplatten - Tungaloy

Taking advantage of a universal PVD‑coated carbide grade optimised for stainless steels and a compact ISO rhombic geometry ensures reliable medium‑duty turning with a sharp, stable cutting edge; order the CPMT090304 AH6225 insert directly via Metav Werkzeuge or ask our consultants if needed.

CPMT090304 AH6225 Tungaloy turning insert — ISO rhombic turning insert, PVD‑coated carbide

A CPMT090304 AH6225 insert designed for ISO‑standard external and internal turning, offering a sharp and stable cutting edge for medium machining of stainless steels.

• ISO rhombic turning insert CPMT 090304 AH6225
• PVD-coated carbide for stainless steels
• 11° relief angle with 0.4 mm corner radius
• Central hole with single-sided countersink

Reliable cutting performance for medium turning

The PVD‑coated carbide grade AH6225 delivers a balanced combination of edge sharpness and toughness, making it suitable for variable conditions encountered in stainless steel turning. The thin PVD layer improves wear resistance without sacrificing the initial sharpness needed for consistent chip formation; this results in longer effective tool life and fewer insert changes, which supports steady production and reduced downtime.

Interchangeability and holder compatibility explained

As an ISO‑standard insert, compatibility with a toolholder is determined by the insert form, relief angle, tolerance class, clamping method, size and thickness. The rhombic geometry and ISO designation ensure straightforward replacement in holders that accept CPMT‑type inserts. The insert’s central hole with a cylindrical bore and single‑sided countersink (40°–60°) facilitates secure clamping and consistent seating in compatible holders, improving repeatability across tool changes.

Geometry that balances surface finish and edge strength

The 0.4 mm corner radius and 11° relief angle are chosen to balance surface quality and cutting edge robustness. A small corner radius assists in achieving finer surface finishes in medium cutting operations, while still providing sufficient edge support to withstand intermittent cutting forces. For applications where higher strength is required, this geometry ensures predictable chip formation when paired with the one‑sided chipbreaker.

Practical application and system setup

Typical uses include external and internal turning operations on stainless steels; select the chipbreaker and grade variant according to workpiece material, machining strategy and machine stability. The system usually comprises the ISO insert, a matched external holder or boring bar, an underlay/clamping kit and replacement screws. Choosing the correct holder form and tolerance class is essential to exploit the insert’s performance and to maintain process stability.

Simple-to-understand technical benefits

ISO standardisation means easy inventory management and interchangeability across machines. The PVD coating reduces friction and enhances wear resistance, the carbide substrate provides the core toughness, and the one‑sided chipbreaker helps control swarf in many turning scenarios. These combined features support efficient production, predictable tool life and repeatable part quality.

Contact Metav Werkzeuge for tailored recommendations on holders and matching tooling for the Tungaloy AH6225 insert — info@metav-werkzeuge.com / +49 2822 7131930

Technical data

• Article number: 6829423
• SKU: 6829423-Tungaloy
• Manufacturer article number: TUN6829423

Facts

• Corner radius: 0.4 mm
• Relief angle: 11°
• Thickness: 3.18 mm
• Size: 09
• Included angle: 80°

Special features

• ISO designation: CPMT090304
• Grade/coating: AH6225, PVD‑coated carbide
• Plate shape: rhombic
• Chipbreaker: one‑sided
• Hole: cylindrical hole with single‑sided countersink (40°–60°)
• Application: turning
• Series: ISO turning inserts

FAQ

What materials is this insert suited for?
The CPMT090304 AH6225 insert is a universal grade optimised for stainless steels and is intended primarily for medium turning tasks in such materials.

Can this insert be used for both external and internal turning?
Yes, the ISO‑standard CPMT geometry and the one‑sided chipbreaker make the insert suitable for both external and internal turning when paired with the correct holder.

How is holder compatibility determined for this insert?
Compatibility depends on insert form, relief angle, tolerance class, clamping method, size and thickness; these factors ensure correct seating and secure clamping in a compatible external holder or boring bar.

What does the 0.4 mm corner radius mean for machining results?
A 0.4 mm corner radius offers a compromise between surface finish and edge strength: it supports finer finishes in medium cutting while providing sufficient edge support against vibration and interrupted cuts.

What is the purpose of the central hole and countersink?
The central cylindrical hole with a single‑sided countersink (40°–60°) facilitates secure fastening and consistent repeatability in clamping, improving positional stability across insert changes.

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.