CNMG 120412 AH8005 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide wear resistance and a double-sided chipbreaker for reliable, productive turning of heat-resistant and hard alloys; order directly via Metav Werkzeuge or contact our consultants for application support.

CNMG 120412 AH8005 CNMG turning insert for Turning – Tungaloy

CNMG120412 AH8005 is an ISO-standard indexable insert engineered for turning applications on heat-resistant and hard materials, offering a robust PVD-coated carbide grade for extended tool life.

PVD-coated carbide for high wear resistance
Double-sided chipbreaker for stable cutting
Rhombic CNMG geometry with 80° included angle
1.2 mm corner radius, 4.76 mm plate thickness

Process reliability through optimised coated carbide

The AH8005 grade combines a PVD-coated carbide substrate with an optimised coating system to deliver consistent wear resistance in demanding turning operations. This characteristic reduces flank and crater wear when machining heat-resistant alloys and harder steels, which translates into longer periods between index changes and fewer unexpected interruptions. The coating also aids thermal stability at elevated cutting temperatures; in practice this means more predictable tool life and improved process capability. Compatibility is ensured by ISO sizing and the standard CNMG form, so the plate integrates with matched holders when the form, clearance angle, tolerance class, fastening arrangement, size and thickness are observed.

Geometry and chip control that increase productivity

The insert’s double-sided chipbreaker and rhombic CNMG geometry (80° included angle) are tailored to promote reliable chip formation and evacuation during external and internal turning. The 1.2 mm corner radius supports a balance between edge strength and surface finish, while the 4.76 mm plate thickness contributes to rigidity under moderate-to-stable cutting conditions. The central cylindrical hole and standard clamping interfaces enable secure fixation, reducing vibration and improving repeatable surface quality. Together, these design choices help raise material removal rates and reduce downtime for index changes, yielding a clear cost-per-component benefit in production runs.

Practical integration and application guidance for set-up

As an ISO-standard turning insert, the component must be paired with a holder that matches the CNMG form, the 0° clearance angle and the specified tolerance class to achieve the intended cutting geometry. The insert is suitable for external and internal turning when the correct chipbreaker and grade are selected to match workpiece material and machining stability. For operations on heat-resistant alloys or harder steels, selecting AH8005 with the appropriate cutting data will deliver the best compromise of tool life and surface integrity. If clarification is needed on holder compatibility or recommended cutting parameters, Metav Werkzeuge’s technical advisors can provide targeted recommendations to ensure a reliable set-up.

For tailored application advice or to place an order for this Tungaloy insert, contact Metav Werkzeuge by email at info@metav-werkzeuge.com or by phone at +49 2822 7131930 — our consultants will assist with selection and process data.

Technical data

• Article number: 6925051

Facts

• Designation: CNMG120412
• Grade: AH8005
• Material: Carbide (PVD-coated)
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 1.2 mm
• Clearance angle: 0°
• Included angle: 80°

Special features

• Rhombic plate form (CNMG)
• Double-sided chipbreaker
• Cylindrical hole for secure clamping
• ISO-standard indexable turning insert
• Suitable for turning of heat-resistant and hard alloys
• PVD-coated carbide grade for enhanced wear resistance

FAQ

What materials is this insert suitable for?
This CNMG120412 AH8005 Tungaloy indexable insert is designed for turning heat-resistant alloys and harder steels; the PVD-coated carbide grade improves wear resistance under elevated temperatures.

How does the chipbreaker affect machining?
The double-sided chipbreaker on the insert promotes controlled chip formation and evacuation, which supports stable cutting and reduces the likelihood of built-up edge and poor surface finish.

Which holders are compatible with this insert?
Compatibility depends on holder geometry, clearance angle and tolerance class; use a holder specified for CNMG inserts that accepts a 12 mm size and 4.76 mm thickness for correct clamping and tool alignment.

What is the benefit of the 1.2 mm corner radius?
A 1.2 mm corner radius increases edge strength for interrupted or heavier cuts while still permitting acceptable surface finish, helping to extend useful edge life in production.

Is this insert reversible or single-use per edge?
The plate is double-sided and indexable, allowing multiple cutting edges to be used sequentially; this increases overall cutting economy compared with single-edge solutions.

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.