CNMG 120412 AH6235 Wendeplatten - Tungaloy

Benefit from a high-performance combination of PVD-coated carbide (AH6235) and a double-sided chipbreaker designed for stable chip control in demanding turning operations; the ISO conformity reduces setup variability and supports consistent production quality. Order genuine inserts directly via Metav Werkzeuge or contact our consultants for application-specific guidance.

CNMG 120412 AH6235 indexable insert for turning — Tungaloy

CNMG 120412 AH6235 is an ISO rhombic indexable insert engineered for external and internal turning, optimised for stainless steels and interrupted cuts with reliable edge stability.

• ISO rhombic insert, 80° geometry
• PVD-coated carbide AH6235
• Optimised for stainless steels, interrupted cuts
• Double-sided chipbreaker for stable chip control

Consistent performance for demanding turning operations

The PVD-coated carbide composition in grade AH6235 delivers a balance of toughness and wear resistance that suits the challenges of machining stainless steels and interrupted cuts. The coating improves surface endurance and reduces built-up edge formation, which means fewer unplanned tool changes and more consistent surface finish on workpieces. For production environments where component quality and repeatability matter, this configuration supports stable cutting forces and predictable tool life, translating into higher throughput and lower scrap rates.

Design that simplifies set-up and improves process security

Designed to the ISO CNMG120412 form, the rhombic shape and 80° geometry provide a broad contact area for interrupted or heavy cuts while maintaining accessibility in internal turning. The double-sided chipbreaker assists controlled chip formation on both cutting edges, extending effective indexable life and reducing machine stoppages for chip-related issues. The insert features a cylindrical hole for positive clamping and a 0° relief that ensures correct seating in standard holders; compatibility is determined by form, relief angle, tolerance class, clamping method, size and thickness, enabling straightforward integration into existing tool systems.

Practical application advice for efficient machining

Use this indexable insert for both external and internal turning where material toughness or intermittence increases the risk of edge breakage. The combination of a corner radius 1.2 mm and a stable grade like AH6235 mitigates notch wear and improves edge resilience during interrupted passes. For stainless steels, favour lower feed rates and adequate cutting speeds that promote chip formation without excessive heat build-up; when stability is limited, reduce depth of cut and rely on the insert’s robust geometry and chipbreaker to maintain process security. When in doubt about holder selection or cutting parameters, consult technical data sheets or our application specialists to optimise insert life and workpiece quality.

For tailored selection advice, availability of genuine Tungaloy indexable inserts or to discuss application-specific parameters, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for prompt, expert support.

Technical data

• Article number: 6879999
• SKU: 6879999-Tungaloy
• Manufacturer SKU: TUN6879999
• Label: CNMG120412 AH6235 Tungaloy-indexable insert
• Manufacturer: Tungaloy
• Model series: ISO indexable inserts
• Material: carbide

Core data

• Corner radius: 1.2 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Geometry angle: 80°
• Relief angle: 0°
• Hole style: cylindrical

Features

• PVD-coated carbide (AH6235)
• Double-sided chipbreaker
• Rhombic shape (CNMG)
• With hole for positive clamping
• Suited for external and internal turning
• Intended for stainless steels and interrupted cuts

FAQ

What materials is this insert designed for?
The CNMG 120412 AH6235 insert is intended primarily for stainless steels and applications with interrupted cuts, using the PVD-coated AH6235 grade for improved edge stability.

How does the chipbreaker affect machining performance?
The double-sided chipbreaker on this indexable insert controls chip formation on both edges, improving process security and reducing the risk of chip-related interruptions during turning cycles.

Which holders are compatible with this ISO insert?
Compatibility depends on holder form, relief angle, tolerance class, clamping method, size and thickness; the CNMG 120412 shape fits standard CNMG holders when those parameters match.

What are the key dimensions to check before ordering?
Verify corner radius (1.2 mm), thickness (4.76 mm), size (12 mm) and the 80° geometry to ensure correct fit and cutting behaviour for the intended turning operation.

Is this an original Tungaloy product and how is it identified?
Yes — the product is an original Tungaloy indexable insert, identifiable by label CNMG120412 AH6235 and manufacturer article number 6879999.

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.