CNMG 120412 AH120 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated carbide grade for wear resistance, an 80° rhombic geometry for stable cutting and a 1.2 mm corner radius for consistent component quality; order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

CNMG120412 AH120 CNMG indexable insert for turning — PVD-coated carbide, 80° by Tungaloy

A CNMG120412 AH120 indexable insert engineered for ISO-compliant external and internal turning, featuring a double-sided chipbreaker and a cylindrical mounting hole for secure clamping.

• PVD-coated carbide grade AH120
• 80° rhombic geometry
• 1.2 mm corner radius
• Double-sided chipbreaker and cylindrical hole

Greater machining stability and longer tool life

The PVD-coated carbide grade AH120 delivers a balance of wear resistance and edge strength that reduces unplanned tool changes and keeps cycle times steady. With a 1.2 mm corner radius and a geometry designed for secure cutting, the insert supports a sharp cutting edge while resisting chipping under interrupted cuts. This results in fewer reworks and a more predictable production flow, especially where process stability is critical.

Improved surface finish and predictable chip control

The 80° rhombic form combined with the double-sided chipbreaker offers controlled chip formation and stable contact conditions, which help to achieve consistent surface quality during both external and internal turning operations. The chipformer is designed to match common turning conditions; by promoting uniform chips the insert reduces the risk of chatter and improves repeatability across batches, delivering measurable quality gains on machined parts.

Seamless integration into ISO tooling systems

As an ISO-designated CNMG insert, compatibility with holders is defined by shape, relief angle, tolerance class, fastening and thickness. The cylindrical hole and standard dimensions (12 mm size, 4.76 mm thickness) allow fast replacement and straightforward inventory management. Using standard indexable tooling reduces setup complexity and shortens downtime, enabling quicker tool changes and easier interchange between machines.

Application guidance and selection clarity

Select the AH120 grade and the double-sided chipbreaker when a sharp cutting edge and process security are required; match the chipbreaker and grade to the workpiece material, machining stability and feed strategy for optimal results. The insert’s specification supports a wide range of turning tasks—external and internal—and is intended for users seeking reproducible performance and simplified tool logistics. Where uncertainty exists on tool pairing, the measured dimensions and ISO conformity make it simple to verify compatibility before commissioning.

For assured process security with Tungaloy inserts such as the CNMG120412 AH120, contact Metav Werkzeuge for tailored recommendations and supply at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6802182
• Our SKU: 6802182-Tungaloy
• Manufacturer SKU: TUN6802182
• Model series: ISO-Drehwendeschneidplatten
• Item name: CNMG120412 AH120 Tungaloy-Wendeplatte

Facts

• Corner radius: 1.2 mm
• Insert size: 12 mm
• Thickness: 4.76 mm
• Insert angle: 80°
• Relief angle: 0°
• Manufacturer article number: 6802182

Special features

• Material: carbide
• Coating: PVD coating, grade AH120
• Shape: rhombic (CNMG)
• Chipbreaker: double-sided
• Mounting: cylindrical hole
• Application: external and internal turning, ISO-compliant

FAQ

What holders are compatible with this insert?
Compatibility is achieved with ISO CNMG holders that match the insert’s rhombic form, relief angle, tolerance class, fastening method, size (12 mm) and thickness (4.76 mm); verify holder specifications against the CNMG120412 dimensions.

Is the AH120 grade suitable for interrupted cuts?
The AH120 PVD-coated carbide grade is designed to be wear- and chipping-resistant, making the CNMG120412 suitable for applications where edge stability and process security are required, including many interrupted-cut scenarios.

Can this insert be used on internal turning operations?
Yes — the CNMG120412 is intended for both external and internal turning; the double-sided chipbreaker and rhombic geometry support reliable chip control in confined toolpaths.

How does the corner radius affect finishing?
A 1.2 mm corner radius balances edge strength and surface finish: it offers improved edge robustness compared with smaller radii while still delivering acceptable surface quality for many turning tasks.

Is the insert indexable on both sides?
The CNMG120412 is double-sided, providing two usable cutting edges per indexed position; this extends the effective service life before replacement.

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.