CCMT 120404 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide AH725, ISO compatibility and a secure mounting design for dependable turning operations and consistent surface quality; order directly via Metav Werkzeuge or consult the specialists for process-specific recommendations.

CCMT 120404 AH725 turning insert (ISO CCMT120404) – Tungaloy

The CCMT 120404 AH725 is an ISO rhombic turning insert designed for external and internal turning, delivering universal, chip-resistant performance on steel and rostfreier Stahl.

• PVD-coated carbide grade AH725
• ISO CCMT120404 rhombic format
• Single-sided chipbreaker, cylindrical hole
• For steel and rostfreier Stahl machining

Consistent process security with a universal cutting grade

The AH725 grade is a PVD-coated carbide developed for universal use where process stability and edge integrity are critical. In mixed-production environments, this grade offers a balance of wear resistance and toughness that reduces unexpected edge failures and enables longer effective tool life. The coating improves heat resistance and reduces adhesive wear during interrupted cuts, which translates into fewer tool changes and steadier cycle times in serial turning operations.

ISO compatibility and secure clamping for easy integration

Designed to the ISO dimensions for CCMT inserts, the rhombic shape and specified relief make this component straightforward to integrate with standard external holders and boring bars. The compatibility with the toolholder depends on factors such as form, 7° relief angle, tolerance class, clamping method, size and thickness; matching those parameters ensures stable seating and repeatable positioning. The insert’s cylindrical hole with a one-sided countersink (40°–60°) provides reliable clamping and quick indexing, aiding changeover efficiency on the shop floor.

Geometry tailored for chip control and surface quality

The insert features a single-sided chipbreaker combined with a 0.4 mm corner radius, which supports controlled chip formation across a range of feeds. This geometry is particularly beneficial where small to medium depths of cut are used and a compromise between finishing and robustness is required. The result is more consistent surface finish and reduced tendency for edge chipping, especially when machining steels and rostfreier Stahl under varying cutting conditions.

Application guidance and practical benefits on the machine

Intended for external and internal turning, the insert is most effective when the grade and chipbreaker are matched to both the workpiece material and the machine-tool stability. The 4.76 mm plate thickness and 12 mm inscribed circle provide a stable contact area for small to medium-sized tools. In practice, selecting this insert for shorter overhangs and rigid setups capitalises on its stability and gives predictable tool life, making it well suited to batch production, general workshop work and applications demanding reliable repeatability.

For tailored selection or to secure the CCMT 120404 AH725 from Tungaloy for improved process reliability, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for expert advice and immediate order support

Technical Data

• Article number: 6856766-Tungaloy
• Manufacturer SKU: TUN6856766
• Manufacturer part number: 6856766
• Article label: CCMT120404 AH725 Tungaloy-Wendeplatte

Facts

• Inscribed circle / size: 12 mm
• Corner radius: 0.4 mm
• Relief angle: 7°
• Plate thickness: 4.76 mm
• Included angle: 80°

Special features

• Carbide substrate, PVD-coated
• Grade: AH725 (universal, chip-resistant)
• Rhombic plate form
• Single-sided chipbreaker
• Cylindrical hole with one-sided countersink (40°–60°)
• ISO-turning insert series
• Application: external and internal turning

FAQ

What materials is this insert suitable for?
The CCMT120404 AH725 turning insert (Tungaloy, SKU 6856766-Tungaloy) is formulated for machining steel and rostfreier Stahl and performs well where a universal, crack-resistant grade is required.

How does the PVD coating benefit cutting performance?
The PVD coating on this AH725 insert enhances heat resistance and reduces adhesion, which improves wear behaviour and supports consistent cutting performance under intermittent or elevated-temperature conditions.

Which holders fit this ISO insert?
Holders and boring bars that accept ISO CCMT120404 inserts and match the insert’s form, 7° relief angle, size and thickness will provide correct seating and clamp stability for dependable machining.

What chip control can be expected from the geometry?
The single-sided chipbreaker combined with a 0.4 mm corner radius produces controlled chip formation for a range of feeds, aiding surface finish and reducing the risk of edge breakouts in typical turning tasks.

Is this insert suitable for small tools and high process demands?
Yes. The combination of a robust AH725 grade and the insert’s secure mounting geometry makes it suitable for smaller tool assemblies where high process security and repeatable results are important.

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.