CNMG 120404 AH6235 Wendeplatten - Tungaloy

Take advantage of a robust combination of PVD-coated carbide and a dedicated chipbreaker that ensures stable performance in stainless steel and interrupted cutting. Order the insert directly via Metav Werkzeuge or consult our specialists for application-specific recommendations and fast delivery.

CNMG120404 AH6235 CNMG ISO turning insert for turning — Tungaloy

The CNMG120404 AH6235 is an ISO-format indexable turning insert designed for turning operations, optimised for machining stainless steel and for interrupted cuts.

• PVD-coated carbide for enhanced wear resistance
• Optimised for stainless steel and interrupted cuts
• Rhombic shape with 0.4 mm corner radius
• Double-sided chipbreaker for stable chip control

Durable grade engineered for challenging stainless-steel work

The AH6235 grade is a PVD-coated carbide formulation developed to resist built-up edge and minimise notch formation when machining stainless steel. This chemical and mechanical resistance extends tool life under unstable cutting conditions and reduces rework rates. Selecting a tougher grade for interrupted cuts and applications with higher break-out risk helps maintain component integrity and delivers consistent surface quality over longer production runs.

Geometry and clamping that support repeatable accuracy

The rhombic CNMG geometry with a 0.4 mm corner radius and 0° clearance provides a compact, robust cutting edge that resists chipping during transverse forces. The insert features a cylindrical hole for secure clamping in compatible ISO holders; compatibility depends on form, tolerance class, fixation and thickness. A thickness of 4.76 mm and a 12 mm inscribed circle ensure mechanical rigidity, improving vibration resistance and repeatable positioning in the toolholder.

Shop-floor benefits: chip control and process reliability

A double-sided chipbreaker design offers reliable chip formation and evacuation across a range of feed rates, reducing the need for frequent manual intervention. For production environments, this translates into higher uptime and a better cost-per-part ratio. The indexable design enables quick corner changes and lower tooling inventory compared with solid tools, while the combination of grade and chip control reduces the likelihood of rework caused by poor edge condition.

For stainless-steel turning with the Tungaloy AH6235 grade, contact Metav Werkzeuge for tailored tooling advice and prompt supply at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6878948-Tungaloy
• Manufacturer article number: 6878948
• Manufacturer SKU: TUN6878948
• Model series: ISO-Drehwendeschneidplatten

Numbers / Core technical data

• Angle: 80°
• Corner radius: 0.4 mm
• Thickness: 4.76 mm
• Inscribed circle: 12 mm
• Clearance angle: 0°
• Hole: with cylindrical hole

Special features

• Grade/coating: AH6235, PVD-coated carbide
• Material: carbide
• Chipbreaker: double-sided
• Shape: rhombic
• Application: turning
• Designed for: stainless steel, interrupted cuts
• ISO designation: CNMG120404

FAQ

Is this insert suitable for machining stainless steel?
Yes. The AH6235 grade and its PVD-coated carbide substrate are specifically formulated for machining stainless steel and offer improved resistance to built-up edge and notch formation when using the CNMG120404 indexable insert.

Which toolholders are compatible with this ISO insert?
Compatibility is determined by the insert form, clearance angle, tolerance class, fixation method, size and thickness. The CNMG120404 designation fits standard ISO CNMG toolholders that accept a 12 mm inscribed circle and a 4.76 mm thickness.

How does the chipbreaker affect process reliability?
The double-sided chipbreaker provides consistent chip formation and evacuation, which stabilises cutting forces and reduces the chance of workpiece or tool damage during interrupted cuts.

Can the insert be indexed to use multiple cutting edges?
Yes. The indexable CNMG geometry supports multiple indexes per cutting edge, allowing economical use of all available edges before replacement, contributing to lower tooling costs.

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.