CNMG 120412 AH8015 Wendeplatten - Tungaloy

Take advantage of the balanced combination of PVD-coated carbide and a robust 1.2 mm corner radius for stable machining of heat-resistant alloys; the ISO-form geometry and cylindrical hole ensure secure clamping and straightforward toolholder compatibility. Order the insert directly via Metav Werkzeuge or consult the technical team for application-specific recommendations.

CNMG120412 AH8015 Tungaloy indexable insert — PVD-coated carbide, 80° geometry

The CNMG120412 AH8015 is an ISO-standard rhombic turning insert designed for external and internal turning of heat-resistant alloys and general-purpose machining.

• ISO rhombic CNMG120412 form, 80° geometry
• PVD-coated AH8015 carbide for alloy machining
• Double-sided chipbreaker, economical two cutting edges
• Cylindrical hole, 4.76 mm thickness for secure clamping

Durable grade for heat-resistant alloys and long tool life

The PVD-coated carbide grade AH8015 provides a balanced combination of wear resistance and cutting-edge stability, making it particularly suitable for machining heat-resistant alloys. The PVD coating enhances surface hardness and thermal stability without compromising toughness, which helps to reduce flank wear under elevated cutting temperatures. For production environments where tool life and repeatability matter, this insert supports consistent performance in medium-duty to demanding turning operations.

ISO form and secure clamping for reliable toolholder compatibility

The rhombic CNMG120412 shape follows ISO standards and presents an 80° geometry that delivers predictable contact conditions and chip flow in most external and internal turning setups. The cylindrical hole and 4.76 mm plate thickness facilitate safe fixation in compatible holders; compatibility is determined by form, clearance angle, tolerance class, fastening method, size and thickness of the insert. Choosing ISO-conformant components reduces setup time and simplifies inventory management across multiple machines.

Proven chip control and cost-effective edge utilisation

Equipped with a double-sided chipbreaker, this insert offers two usable cutting edges per side, increasing cost efficiency while maintaining stable chip formation. The 1.2 mm radius provides a robust cutting corner that tolerates interrupted cuts and supports decent surface finish in semi-finishing passes. In practice, the combination of the chipbreaker geometry with the AH8015 grade ensures consistent chip evacuation when machining alloys, which reduces heat concentration at the cutting edge and supports longer intervals between indexings.

Practical application guidance for predictable results

Designed for general turning and the machining of heat-resistant alloys, the insert functions well across a range of feeds and depths of cut when paired with a holder that matches ISO CNMG specifications. For best results, select the chipbreaker style and grade that suit the workpiece material, machining type and machine-tool stability; smaller radii and finishing geometries are preferable for fine surface requirements, while the 1.2 mm corner suits higher metal removal rates. If cutting parameters require optimisation, technical consultation can help to define speeds, feeds and coolant strategy for reliable production.

For reliable machining of heat-resistant alloys, contact Metav Werkzeuge for ordering and tailored cutting recommendations for the Tungaloy CNMG120412 AH8015 insert — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6946691
• Manufacturer SKU: TUN6946691
• SKU: 6946691-Tungaloy
• Model series: ISO indexable turning inserts
• Designation: CNMG120412
• Grade: AH8015
• Material: Carbide

Facts

• Geometry angle: 80°
• Clearance angle: 0°
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 1.2 mm
• Hole: with cylindrical hole

Special features

• PVD-coated hardmetal grade AH8015
• Rhombic CNMG form, ISO-compliant
• Double-sided chipbreaker, economical edges
• Suitable for external and internal turning
• Compatibility depends on holder form, tolerance and fastening

FAQ

What materials is this insert suitable for?
The CNMG120412 AH8015 insert is intended primarily for heat-resistant alloys and general-purpose turning applications; the AH8015 grade balances wear resistance and edge stability for such materials.

How many cutting edges are available per insert?
Due to the double-sided chipbreaker, the insert offers multiple usable edges, improving economy by allowing indexing to fresh cutting corners.

Which toolholders are compatible with this insert?
Compatibility follows ISO CNMG specifications; the insert requires a holder matching form, clearance angle, tolerance class, fastening method, size and thickness.

What does the 1.2 mm radius mean for machining?
A 1.2 mm radius provides a sturdy corner suitable for higher metal removal rates and interrupted cuts while delivering acceptable surface finish in semi-finishing operations.

Is the coating suitable for high-temperature cutting?
The PVD coating increases thermal resistance and surface hardness, supporting stable performance at elevated cutting temperatures commonly encountered when machining heat-resistant alloys.

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.