CCMT 120412 AH6225 Wendeplatten - Tungaloy

Take advantage of a versatile PVD-coated carbide grade that balances a sharp cutting edge with robustness for medium turning operations; the 1.2 mm corner radius and 80° approach angle provide stable cutting and reliable surface finish. Order directly via Metav Werkzeuge or consult our application specialists for holder compatibility and process advice.

CCMT 120412 AH6225 Tungaloy turning insert — PVD-coated carbide, 1.2 mm radius

CCMT 120412 AH6225 Tungaloy insert for general turning tasks, designed for external and internal operations in stainless steels with an ISO CCMT geometry and single-sided chipbreaker

• ISO CCMT geometry for universal turning
• PVD-coated carbide grade AH6225
• 1.2 mm corner radius for robust edges
• Cylindrical hole with single-sided countersink
• 7° clearance and 80° approach angle

Consistent edge life for mixed stainless operations

The combination of the AH6225 grade and the PVD coating delivers a balance between a sharp cutting edge and wear resistance, making the insert suited to fluctuating conditions often found when machining stainless steels. The coating reduces adhesive wear and improves edge stability, which leads to longer tool life and fewer insert changes. For shops facing varied batch sizes and intermittent interruptions, this translates into increased effective machining time and reduced tooling overhead, while maintaining a reliable surface finish.

Secure clamping and straightforward holder matching

Compatibility with toolholders is determined by the insert’s form, 7° clearance, tolerance class, fixation method, size (12 mm), thickness (4.76 mm) and hole geometry. The cylindrical hole with a single-sided countersink (40°–60°) ensures reproducible seating and secure clamping in standard CCMT-compatible holders. This predictable fit reduces vibrations and runout risk, improving part repeatability and making tool setup faster and more reliable on production floors.

Defined geometry for stable cutting and chip control

With an 80° approach angle and a 1.2 mm corner radius, the insert offers a compromise between edge strength and cutting sharpness, suitable for medium-depth cuts and finishing passes. The single-sided chipbreaker promotes controlled chip formation and evacuation during turning, reducing the likelihood of built-up edge and facilitating continuous production. For manufacturers aiming for consistent dimensional accuracy, this geometry supports improved surface integrity and process stability.

Practical benefits in the workshop

The ISO CCMT form factor allows easy replacement and inventory standardisation across different machines. The insert’s specification—PVD-coated carbide, AH6225 grade, 1.2 mm radius, size 12 and 4.76 mm thickness—makes it a sensible choice where versatility and process reliability are priorities. Where a sharp yet resilient cutting edge is required for rostfrei workpieces, the insert can reduce rework rates and contribute to predictable batch throughput.

For tailored advice on applying this Tungaloy turning insert in a specific process, contact Metav Werkzeuge — phone +49 2822 7131930 or email info@metav-werkzeuge.com for expert guidance and recommended holder pairings

Technical data

• Article number: 6903268

• SKU: 6903268-Tungaloy

• Manufacturer SKU: TUN6903268

• Model series: ISO turning insert series

Facts

• ISO designation: CCMT120412

• Grade: AH6225

• Material: PVD-coated carbide

• Size: 12

• Thickness: 4.76 mm

• Corner radius: 1.2 mm

• Clearance angle: 7°

• Approach angle: 80°

Special features

• Hole: with hole

• Hole style: cylindrical hole + single-sided countersink (40°–60°)

• Chipbreaker: single-sided

• Intended application: turning (external and internal)

FAQ

Which materials is this insert designed for?
The CCMT 120412 AH6225 Tungaloy insert is formulated primarily for machining stainless steels and performs well under mixed-condition turning where edge stability is essential.

How does the AH6225 grade benefit machining?
AH6225 combines a sharp cutting edge with PVD-enhanced wear resistance, giving stable flank life and consistent results in medium turning applications with occasional interruptions.

What ensures correct fit in a holder?
Correct fit is achieved by matching the ISO CCMT geometry, size, thickness and the insert’s hole and countersink specification; the CCMT 120412 form and cylindrical hole with countersink provide secure seating.

Can the insert be used for both external and internal turning?
Yes, the geometry and chipbreaker design of this CCMT insert make it suitable for both external and internal turning tasks when paired with the appropriate holder.

What surface finish improvements can be expected?
The combination of 1.2 mm corner radius and 80° approach angle supports improved surface integrity compared with more aggressive geometries, helping to reduce subsequent finishing 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.