CNMG 090408 AH6225 Wendeplatten - Tungaloy

Combining a sharp, stable cutting edge with universal performance on stainless steels and the space‑saving benefit of a double‑sided insert ensures consistent medium‑duty turning results; order the CNMG090408 AH6225 insert directly via Metav Werkzeuge or consult our advisors for application support.

CNMG 090408 AH6225 — indexable turning insert by Tungaloy

A CNMG090408 AH6225 indexable turning insert engineered for medium machining of stainless steels, offering a durable PVD-coated carbide grade and a balanced 0.8 mm corner radius for reliable surface quality.

• ISO CNMG090408 form, rhombic geometry
• PVD-coated carbide grade AH6225
• Designed for stainless steel machining
• Double-sided chipbreaker, with cylindrical hole

Consistent edge performance for medium-duty turning

The PVD‑coated carbide grade AH6225 delivers a combination of a sharp cutting edge and the stability required under fluctuating conditions typical of stainless steel turning. The PVD coating increases resistance to built‑up edge and thermal loads while preserving edge integrity, which translates into longer, predictable tool life and fewer unexpected tool changes. A moderate 0.8 mm corner radius balances cutting force distribution and finish quality, so repeatable component surfaces are achieved without sacrificing edge security.

Fit and setup that reduce cycle time

Compatibility with holders is determined by form, clearance angle, tolerance, clamping and thickness; the CNMG090408 geometry (rhombic form, size 09) and the 0° clearance angle ensure straightforward seat and alignment in ISO‑standard external holders. The insert’s cylindrical hole and the 4.76 mm plate thickness enable secure clamping and repeatable seating, reducing setup time and minimising indexing errors during production. Clear specification of these parameters supports process planning and lowers the risk of incorrect tool selection.

Productivity gains through design and grade selection

A double‑sided chipbreaker allows indexing to a fresh cutting edge, halving per‑edge cost compared with single‑edged alternatives and improving spindle uptime. The insert’s chip control geometry is optimised for medium cuts in stainless steels, limiting material adhesion on the rake face and aiding evacuation. Using a universal grade reduces the variety of inserts kept in stock, simplifying inventory management and increasing overall process economy while maintaining consistent surface finish and dimensional control.

For reliable stainless steel turning with the Tungaloy AH6225 grade, contact Metav Werkzeuge for application advice and availability at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6966087
• Manufacturer SKU: TUN6966087
• SKU: 6966087-Tungaloy
• Model series: ISO turning indexable inserts
• Material: carbide
• Grade: AH6225
• Insert designation: CNMG090408

Core data

• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Size: 09
• ISO code: 090408
• Clearance angle: 0°
• Lead/approach angle: 80°

Special features

• PVD-coated carbide
• Universal grade for stainless steels
• Double-sided chipbreaker
• Rhombic insert form
• Cylindrical hole for secure clamping
• Application: turning (external and internal)
• Compatible with ISO-standard holders and clamping systems

FAQ

What materials is the CNMG090408 AH6225 insert suited for?
The CNMG090408 AH6225 insert is optimised for machining stainless steels; the PVD-coated carbide grade offers good edge stability and chip control for medium cutting conditions.

What does the AH6225 grade offer in practical terms?
AH6225 is a PVD-coated carbide grade that combines a sharp cutting edge with wear resistance, making it suitable for variable stainless steel applications where a stable edge and good tool life are required.

Can the insert be indexed to present a new edge?
Yes, the insert is double-sided with a chipbreaker on both faces, allowing indexing to a fresh cutting edge and extending the usable life of the insert.

Which holder characteristics must be checked for correct fit?
Compatibility depends on insert form, clearance angle, tolerance class, clamping style, size and thickness; ensure the holder matches the CNMG090408 geometry and the 4.76 mm plate thickness.

How does the 0.8 mm corner radius affect machining results?
A 0.8 mm corner radius offers a compromise between edge strength and surface finish: it reduces edge chipping risk while still delivering acceptable surface quality for medium turning operations.

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.