CCMT 120412 AH6235 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide durability, a 1.2 mm corner radius for robust performance, and ISO compatibility for predictable tool changes; order via Metav Werkzeuge or contact the sales team for application advice.

CCMT120412 AH6235 ISO turning insert — PVD-coated carbide, 1.2 mm radius (Tungaloy)

The CCMT120412 AH6235 is an ISO-format turning insert engineered for external and internal turning, optimised for stainless steels and interrupted cuts where increased chip control and edge resistance are required

• ISO insert CCMT120412 geometry
• PVD-coated carbide AH6235 grade
• 1.2 mm corner radius for robust transitions
• Cylindrical hole with single-sided countersink

High-performance wear resistance for demanding turning applications

The PVD-coated grade AH6235 provides a tougher edge that resists chipping in applications with interrupted cuts and unstable machining conditions. As a PVD-coated carbide insert, it combines a hard, wear-resistant surface with a core substrate that absorbs mechanical shock; this balance reduces flank and crater wear, extending productive life and reducing tool-change frequency. The result is a measurable improvement in process stability and consistent component tolerances in high-mix and production environments.

Designed to fit ISO systems for rapid tool replacement

Marked with the ISO designation and rhombic geometry, the insert matches standard external holders and boring bars when the holder’s form, relief angle, tolerance class, fastening method, size and thickness correspond. The cylindrical hole with a single-sided countersink (40°–60°) ensures secure clamping and straightforward indexing, while the plate thickness of 4.76 mm and included angle of 80° help define rigidity in the clamping system. This compatibility simplifies inventory management and supports predictable cycle planning on the shop floor.

Practical machining benefits and application guidance

The one-sided chipbreaker and 1.2 mm corner radius combine to produce a controlled chip form and robust cutting edge, suited to both external and internal turning where surface finish and edge integrity matter. Select the chipbreaker and grade according to workpiece stability and material: the tougher AH6235 grade is ideal for stainless steels and situations with increased breakout risk. For best results in interrupted cuts, moderate cutting speeds and stable clamping are recommended to exploit the insert’s fracture resistance.

Material suitability and quick system integration

Made from sintered carbide, the insert is intended for turning operations on stainless steels and other challenging alloys where a tough, PVD-protected cutting edge is advantageous. The combination of 7° clearance angle, rhombic plate form and a 12 mm plate size supports a range of feeds and depths of cut, while the ISO system approach means replacement and spares are straightforward to plan. For application-specific settings or to match the insert to a particular holder, Metav Werkzeuge provides technical advice and availability information.

Contact Metav Werkzeuge to discuss application recommendations, availability of the Tungaloy CCMT120412 AH6235 insert or to request material-specific cutting data at info@metav-werkzeuge.com or by telephone on +49 2822 7131930

Technical data

• Article number: 6903444-Tungaloy
• Manufacturer article number: 6903444
• Manufacturer SKU: TUN6903444
• Brand: Tungaloy
• Series: ISO-Drehwendeschneidplatten

Facts

• Corner radius: 1.2 mm
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Included angle: 80°
• Clearance angle: 7°
• Hole: with hole
• Hole style: cylindrical hole + single-sided countersink (40°–60°)

Special features

• Material: carbide
• Coating: PVD
• Grade: AH6235
• Chipbreaker: one-sided
• Application: turning (external and internal)
• Typical use: interrupted cuts, stainless steels
• System components: ISO insert, suitable external holder or boring bar, shim/clamp set, replacement screws

FAQ

What materials is this insert best suited for?
The AH6235 grade is designed for machining stainless steels and offers enhanced resistance in interrupted cutting and in applications with higher breakout risk; the insert’s PVD coating supports stable performance on challenging alloys.

How does the 1.2 mm corner radius affect machining?
A 1.2 mm corner radius increases edge strength and reduces the likelihood of chipping during interrupted cuts, improving edge life and supporting more robust depth-of-cut choices.

Is the CCMT120412 compatible with standard ISO holders?
Compatibility depends on holder form, relief angle, tolerance class, fastening method, size and thickness; the CCMT120412 follows ISO geometry to simplify matching with standard external holders and boring bars.

What is the function of the single-sided countersink in the hole?
The cylindrical hole with a single-sided countersink ensures reliable clamping and correct seating, which contributes to repeatable tool positioning and stable cutting behaviour.

Are replacement screws and clamp sets required for mounting?
A system typically comprises the ISO insert, a matching holder or boring bar, a shim or clamp set and replacement screws; check holder specifications to confirm required fasteners.

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.