CCMT 120408 AH6225 Wendeplatten - Tungaloy

Take advantage of a proven combination of ISO conformity, a PVD-coated carbide grade optimised for stainless steels, and a versatile 0.8 mm corner radius to maintain productivity and tool life; order the insert directly via Metav Werkzeuge or consult our specialists for application guidance.

CCMT 120408 AH6225 indexable insert for Turning — Tungaloy, PVD-coated carbide, 0.8 mm radius

The CCMT120408 AH6225 is an ISO-standard indexable turning insert designed for external and internal turning of stainless steels, providing a balance of sharp cutting performance and edge stability for medium machining conditions.

• ISO CCMT 120408 geometry, rhomboid insert
• PVD-coated carbide grade AH6225
• 0.8 mm corner radius for versatile turning
• Suitable for stainless steel machining

Increased productivity through a balanced cutting grade

The PVD-coated carbide grade AH6225 delivers a reliable compromise between cutting-edge sharpness and wear resistance, which makes it particularly effective for variable machining conditions on stainless steels. Thanks to the coating technology, the insert sustains higher temperatures and reduces built-up edge formation, resulting in longer effective tool life and steadier process results. This means fewer tool changes, less downtime and improved cycle times in medium-duty turning operations.

Consistent surface quality and controlled chip formation

A 0.8 mm corner radius combined with the one-sided chipbreaker geometry generates controlled chip formation while preserving surface finish. The moderately sharp, yet robust cutting edge reduces the risk of edge chipping under interrupted cuts or when encountering material variations. The insert’s relief angle of 7° and the rhomboid shape contribute to predictable cutting forces, helping to maintain consistent dimensional accuracy and improved surface quality on components.

Seamless integration into ISO-compliant tool systems

The insert conforms to ISO CCMT 120408 dimensions, so compatibility with external holders and boring bars is determined by form, relief angle, tolerance class, fastening and thickness. Using ISO-standardised components simplifies inventory and tool management: inserts, clamping sets and replacement screws are interchangeable across matched tool carriers. The presence of the central hole with a cylindrical bore and a single-side countersink supports secure fastening and repeatable seating, which reduces setup time and boosts process reliability.

Practical selection and machining guidance

For best results, pair the grade and chipbreaker with cutting parameters aligned to machine rigidity and workpiece condition; select a heavier chipbreaker or a larger radius for unstable setups, or a sharper configuration for fine finishing passes. The insert is intended for both external and internal turning; when switching between materials or machining modes, reassess feed and speed rather than relying solely on cutter geometry. The combination of PVD coating, AH6225 grade, and the CCMT geometry offers a pragmatic solution for workshops that require reproducible performance without excessive parameter tuning.

For tailored application advice or to secure original Tungaloy CCMT120408 AH6225 indexable inserts, contact Metav Werkzeuge for fast delivery and technical consultancy.

Technical Data

• Article number: 6903264
• SKU: 6903264-Tungaloy
• Manufacturer SKU: TUN6903264
• Model series: ISO-Drehwendeschneidplatten

Facts

• Insert designation: CCMT120408
• Insert size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Relief angle: 7°
• Included hole: with hole; cylindrical hole + single-side countersink (40°–60°)
• Insert shape: rhomboid

Special features

• Grade/coating: AH6225, PVD-coated carbide
• Application: external and internal turning
• Chipbreaker: one-sided
• Angle: 80°
• Suitable for: stainless steels

FAQ

What materials is this insert suitable for?
The CCMT120408 AH6225 insert from Tungaloy is optimised for stainless steels and performs well in medium machining conditions for both external and internal turning.

Which dimensions and designation identify the insert?
The insert is designated CCMT120408, with a 12 mm size, 4.76 mm thickness and a 0.8 mm corner radius; the manufacturer article number is 6903264.

What is the coating and what advantage does it provide?
The AH6225 grade is PVD-coated carbide, which improves thermal resistance and reduces built-up edge, extending tool life in variable stainless-steel machining.

How is holder compatibility determined?
Compatibility depends on the insert form, relief angle, tolerance class, fastening method, size and thickness; the ISO-standard CCMT geometry ensures predictable matching with compliant holders.

Is the insert indexable and suitable for interrupted cuts?
Yes, the CCMT geometry is indexable and offers multiple cutting edges; the robust yet sharp grade and the 0.8 mm radius provide resilience for many interrupted-cut scenarios.

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.