CNMG 090412 AH6225 Wendeplatten - Tungaloy

Take advantage of the insert’s combination of PVD-coated carbide durability, ISO compatibility and a double-sided chipbreaker for stable machining of stainless steel; the design reduces downtime and supports consistent surface quality. Order the CNMG090412 AH6225 indexable insert directly via Metav Werkzeuge or consult our technical advisors for selection guidance.

CNMG090412 AH6225 — ISO turning insert for stainless steel by Tungaloy (PVD-coated carbide)

CNMG090412 AH6225 is an ISO-standard indexable turning insert designed for external and internal turning operations, optimised for stainless-steel machining and medium cutting conditions.

• ISO CNMG090412 profile for standard holders
• PVD-coated carbide grade AH6225 for stainless steel
• Double-sided chipbreaker for stable cutting
• Cylindrical hole, rhombic 09 format

Consistent cutting performance for stainless-steel turning

The combination of a PVD-coated surface and a wear-resistant carbide substrate delivers predictable performance when machining stainless steel. The coating reduces built-up edge and improves heat resistance, while the substrate maintains a sharp cutting edge under varying conditions. This results in fewer tool changes and a more reliable production flow, particularly in batch and small-lot turning where repeatability matters.

Longer tool life and improved economy

The AH6225 grade has been developed as a universal solution for stainless-steel applications, offering a balance between edge sharpness and toughness. The result is optimised chip formation and slower flank wear, which translates into reduced tooling costs per component and fewer interruptions for insert replacement. Cost-efficiency is achieved through stable tool life rather than sacrificing surface quality.

ISO compatibility eases integration into existing tool systems

The CNMG geometry (ISO designation 090412) ensures compatibility with a wide range of external holders and boring bars when matching form, clearance angle, tolerance class, fastening and thickness. The standardised interface simplifies inventory and tool setup. Checking holder parameters against the ISO profile guarantees correct seating and secure clamping for safe, repeatable machining.

Stable machining under variable conditions

Features such as the double-sided chipbreaker and rhombic format support reliable chip control and cutting stability at medium depths of cut. The insert’s cylindrical hole and retention geometry maintain secure fixation, while the 0° clearance angle suits many turning applications. Together these attributes reduce vibrations and improve surface finish during interrupted or steady cuts.

Practical system setup and maintenance advantages

As an indexable insert, the CNMG090412 AH6225 can be rotated or flipped to present a fresh cutting edge, effectively doubling usable edges and simplifying stock management. The system consists of the ISO insert, a matching external holder or boring bar, a shim/clamp and replacement screws — standard items in most workshops. Quick insert changes keep machine uptime high and maintenance straightforward.

Recommended applications and selection guidance

Designed primarily for turning operations on stainless steel, this insert performs well in external and internal turning when medium cutting parameters are used. Choose the chipbreaker and grade to match material, cutting style and stability requirements; the universal AH6225 is a reliable starting point for mixed-production environments seeking a balance of surface quality and tool life.

Contact Metav Werkzeuge for tailored advice on selecting Tungaloy indexable inserts and to confirm that the PVD-coated AH6225 meets specific production requirements — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6903161
• Manufacturer SKU: TUN6903161
• SKU: 6903161-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Designation: CNMG090412 AH6225 Tungaloy-Wendeplatte

Key measurements

• Size: 09
• Insert designation: 090412
• Thickness: 4.76 mm
• Clearance angle: 0°
• Included angle: 80°
• Corner radius: 1.2 mm

Features & compatibility

• Material: carbide (PVD-coated)
• Grade: AH6225
• Double-sided chipbreaker
• Cylindrical hole (with hole)
• Rhombic insert shape
• Typical application: turning (external and internal)
• Suitable for stainless steel

FAQ

What holders fit this ISO CNMG insert?
The CNMG090412 AH6225 fits holders designed for the CNMG profile; compatibility depends on form, clearance angle, tolerance class, fastening and insert thickness.

Is AH6225 suitable for continuous turning of stainless steel?
AH6225 is a universal grade for stainless steel and offers a balanced edge for continuous and mixed turning operations at medium parameters.

How many cutting edges are available per insert?
The insert is double-sided and indexable, allowing rotation or flipping to use multiple cutting edges before replacement.

Can this insert be used for internal boring?
Yes — the insert is suitable for both external and internal turning when mounted in an appropriate boring bar or holder compatible with CNMG inserts.

What chip control can be expected with this insert?
The double-sided chipbreaker supports stable chip formation and good control under typical medium cutting conditions, improving surface finish and process stability.

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.