CCMT 120412 AH6225 Wendeplatten - Tungaloy

The combination of an ISO-standard rhombic geometry and a PVD-coated carbide grade AH6225 ensures consistent chip control and extended edge life in medium turning operations; order the CCMT 120412 AH6225 insert directly via Metav Werkzeuge or consult the technical team for process integration.

CCMT 120412 AH6225 — ISO turning insert, PVD-coated carbide (Tungaloy)

The CCMT 120412 AH6225 is a rhombic, ISO-standard turning insert designed for medium turning of rostfreier Stahl, providing a sharp yet robust cutting edge for variable production conditions.

• ISO rhombic insert CCMT 120412
• PVD-coated carbide AH6225 for rostfreier Stahl
• 1.2 mm corner radius for reliable edge
• Cylindrical hole with 40°–60° countersink

Consistent cutting performance for rostfreier Stahl and mixed batches

The PVD-coated AH6225 grade delivers a balance between sharpness and toughness that suits interrupted cuts and the variable abrasiveness of rostfreier Stahl. The coating reduces adhesion and improves resistance to built-up edge, while the base carbide supports a stable cutting line under fluctuating conditions. For production environments where batches vary or tool change frequency affects throughput, this insert offers improved process stability and reduced rework, translating into fewer stoppages and a more predictable machining cadence.

Mounting clarity and compatibility to simplify tool selection

The insert conforms to ISO dimensions and features a cylindrical hole with a one-sided countersink (40°–60°), which makes it compatible with a wide range of external holders and boring bars. Compatibility is determined by insert form, relief angle, tolerance class, fastening and thickness; the standardised shape simplifies stocking and holder selection. Clear specification of the relief angle (7°) and included angle (80°) supports straightforward setup and reduces the risk of mismatched tool-holder geometry that can compromise surface finish or tool life.

Geometry and chip control that support reliable productivity

With a 1.2 mm corner radius and a single-sided chipbreaker, the insert promotes predictable chip formation and strength at the cutting edge. The rhombic form (CCMT) combines access to external and internal turning with favourable rake and clearance characteristics. For shops aiming to keep cycle times low while maintaining surface quality, the insert’s geometry helps achieve repeatable results with moderate cutting depths and feed rates. The PVD coating further enhances the edge integrity, extending usable life and lowering the frequency of index changes.

Contact Metav Werkzeuge to discuss process parameters for the AH6225 grade or to request compatible holder recommendations for seamless integration into existing turning cells.

Technical data

• Article number: 6903261-Tungaloy
• Manufacturer SKU: TUN6903261
• Manufacturer article number: 6903261
• Name: CCMT120412 AH6225 Tungaloy insert

Core specifications

• Insert designation: CCMT120412
• Grade: AH6225
• Corner radius: 1.2 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Relief angle: 7°
• Included angle: 80°
• Hole style: cylindrical hole + one-sided countersink (40°–60°)

Design & features

• PVD-coated carbide
• Rhombic (CCMT) ISO geometry
• Single-sided chipbreaker
• ISO-standard turning insert
• Application: turning of rostfreier Stahl
• Compatibility depends on holder form, relief angle, tolerance, fastening, size and thickness

FAQ

What applications is this insert best suited for? The CCMT 120412 AH6225 insert is engineered for medium turning operations, in particular for rostfreier Stahl, offering a compromise between sharpness and edge stability for batch or variable machining.

How does the AH6225 grade improve tool life on rostfreier Stahl? The PVD-coated AH6225 grade reduces adhesion and improves wear resistance; in the CCMT 120412 geometry this results in a more stable cutting edge and fewer index changes during interrupted or mixed-condition cutting.

Which tool holders are compatible with this CCMT insert? Compatibility is determined by holder form, relief angle, tolerance class, fastening, size and thickness; holders designed for CCMT 120412 ISO inserts with a cylindrical hole and matching countersink will be suitable.

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.