CNMG 120412 AH120 Wendeplatten - Tungaloy

Take advantage of the PVD-coated AH120 grade and the ISO CNMG120412 form for reliable, high-performance turning: wear-resistant carbide with a sharp cutting edge ensures consistent surface quality and longer tool life while ISO compatibility simplifies holder selection. Order the inserts directly via Metav Werkzeuge or ask the consultants for tailored cutting-data recommendations.

CNMG120412 AH120 Tungaloy indexable turning insert — PVD-coated carbide, 80° rhombic geometry

The CNMG120412 AH120 Tungaloy insert is an ISO-standard indexable insert engineered for general external and internal turning where a sharp cutting edge and process security are required

• CNMG ISO form for standardised holder compatibility
• PVD-coated carbide AH120 for wear resistance
• Double-sided chipbreaker for stable chip control
• Rhombic 80° geometry with cylindrical hole

Consistent machining results through ISO compatibility

The ISO CNMG form guarantees predictable mounting and repeatable positioning in standard indexable holders, which reduces setup time and minimises variables that affect batch-to-batch consistency. With clearly defined form, clearance angle, tolerance class and thickness, the insert supports stable clamping and simplifies tool management on the shop floor. This ISO compatibility is particularly useful for production environments that require fast changeovers and consistent dimensional accuracy.

Longer tool life with PVD-coated AH120 carbide

The AH120 grade combines a wear-resistant PVD-coated carbide substrate with a composition optimised for turning. The coating enhances oxidation and abrasion resistance, extending the interval between indexings and replacements. As a result, cycle times remain stable and component finish is maintained for longer. The material choice is aimed at balancing edge toughness and durability, delivering a measurable improvement in overall tool economy for medium-duty turning operations.

Sharp cutting edge for demanding turning operations

A well-defined cutting edge delivers clean shearing and improved surface quality. The insert’s geometry preserves a sharp cutting edge while the carbide substrate resists edge degradation under typical cutting loads. This leads to predictable chip formation and a reduction in rework. For manufacturers targeting consistent finishes and tight tolerances, the combination of geometry and grade supports reliable performance across a range of feed and speed settings.

Secure clamping, simple indexing and efficient tool handling

The rhombic form with an 80° approach angle and a cylindrical hole allows positive clamping and correct seat alignment in compatible holders. The insert is double-sided, providing two usable cutting edges per index and reducing tooling costs per component. The standardised dimensions and hole style simplify inventory and spare-part handling, making it straightforward to replace worn inserts without additional adjustments to the holder or machine set-up.

Improved chip control and surface finish

The double-sided chipbreaker helps control chip flow and reduces the risk of entanglement or workpiece damage, especially on uninterrupted turning passes. Better chip control contributes directly to improved surface finish and operator safety. Selecting the appropriate chipbreaker and grade for the workpiece material and machining conditions enhances process security and helps maintain cycle-time targets for serial production.

Practical selection and shop-floor integration

Designed for general turning tasks, the insert integrates smoothly into existing tool systems that accept CNMG geometry. For optimal results, match the chipbreaker and AH120 grade to the specific workpiece material and machining stability. If uncertainties arise regarding holder compatibility or cutting-data settings, technical consultation is available to define the ideal combination of insert, holder and cutting parameters for the intended application.

Contact Metav Werkzeuge to discuss suitability, cutting parameters and stock availability for the Tungaloy CNMG120412 AH120 indexable inserts and to request personalised technical guidance

Technical data

• Article number: 6811636
• Manufacturer article number: 6811636
• Manufacturer SKU: TUN6811636
• SKU: 6811636-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Designation: CNMG120412 AH120 Tungaloy-Wendeplatte

Facts

• Corner radius: 1.2 mm
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Wedge angle: 80°
• Clearance angle: 0°

Special features

• Material: PVD-coated carbide (AH120)
• Double-sided chipbreaker
• Rhombic plate form (CNMG)
• Cylindrical hole for standard clamping
• ISO-standard indexable insert for turning
• Suitable for external and internal turning applications

FAQ

Which machining operations is this insert designed for?
The CNMG120412 AH120 Tungaloy insert is intended for turning operations, covering both external and internal turning where a sharp cutting edge and process security are required.

What are the key dimensions of the insert?
The insert has a corner radius of 1.2 mm, a plate thickness of 4.76 mm and a plate size of 12 mm; the wedge angle is 80° and the clearance angle is 0°.

How does compatibility with holders work?
Compatibility depends on ISO form, clearance angle, tolerance class, fastening method, size and thickness; the CNMG form and cylindrical hole are standardised to fit common external holders and boring bars.

What coating and grade does the insert use and what are the benefits?
This insert uses the AH120 PVD-coated carbide grade, providing enhanced wear resistance and edge stability for longer tool life and more consistent surface quality.

Is the insert indexable and how many cutting edges are available?
Yes, the insert is double-sided and indexable, offering multiple cutting edges per insert to reduce tooling costs and downtime.

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.