CNMG 120412 AH120 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide durability, a double-sided chipbreaker and ISO‑standard geometry for reliable turning performance and fewer tool changes; order the article directly via Metav Werkzeuge or consult the specialists for application support.

CNMG120412 AH120 — ISO indexable turning insert, PVD‑coated carbide by Tungaloy

The CNMG120412 AH120 is an ISO‑standard indexable insert designed for external and internal turning applications, offering a sharp cutting edge and process security in a rhombic form with a cylindrical hole for secure clamping.

• PVD-coated carbide for wear and fracture resistance
• Double-sided chipbreaker for versatile turning
• ISO‑standard CNMG 120412 geometry, 80° cutting angle
• 1.2 mm corner radius for robust cutting edge

Reliable cutting performance for demanding turning tasks

The PVD-coated carbide grade AH120 is formulated for wear and fracture resistance, delivering a sharp cutting edge and consistent results when stability and process safety are required. The combination of a precision coating and a hard substrate reduces flank wear and helps preserve the cutting edge across prolonged cycles. With a double-sided chipbreaker, the insert supports controlled chip formation in a variety of turning operations, improving machining stability and reducing unplanned interruptions. These attributes translate into measurable savings through reduced tool changes and more predictable cycle times.

Predictable tool life and efficient machining economics

A coated, wear‑resistant grade such as AH120 contributes directly to economy in production: fewer tool swaps, extended intervals between indexations and steadier surface quality. The robust 1.2 mm corner radius balances edge strength with cutting performance, making the insert suitable for both medium and heavier roughing cuts where edge robustness is critical. Because the chipformer is double‑sided, the insert can be indexed to present fresh cutting edges without replacing the insert, which supports uptime and lowers consumable cost per workpiece while maintaining consistent dimensional results.

Fast integration into ISO tooling systems for reliable set‑ups

Compatibility with toolholders is ensured by adhering to ISO geometry: the insert’s 12 mm inscribed circle, rhombic form, 4.76 mm thickness and cylindrical hole match common clamping designs. The specified 80° included angle directs cutting forces predictably and the 0° relief angle detail defines seating and clearance with the holder. When selecting an insert, ensure the holder matches these parameters — form, relief/clearance, tolerance class, fastening and thickness — to guarantee secure clamping and repeatable positioning. The standardised format simplifies tool‑change procedures and reduces setup variability in production environments.

Practical selection advice and application guidance

Use this insert series for both external and internal turning; select the chipbreaker and grade according to the workpiece material, machining method and machine‑tool stability. The PVD-coated AH120 grade is aimed at applications where a sharp edge and reliable process behaviour are needed; it is especially suitable when consistent surface finish and long tool life are priorities. For complex setups or special materials, match holder geometry and clamping elements precisely and consider trial cuts to confirm feeds and speeds under real machining conditions. If supplementary technical data or machining examples are required, Metav Werkzeuge can provide tailored recommendations.

Contact Metav Werkzeuge for application‑specific advice or to request the Tungaloy CNMG120412 AH120 indexable insert (SKU TUN6810109) via info@metav-werkzeuge.com or call +49 2822 7131930 for prompt, expert support

Technical data

• Manufacturer article number: 6810109
• SKU: 6810109-Tungaloy
• Manufacturer SKU: TUN6810109
• Brand: Tungaloy

Core data

• Inscribed circle: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Relief angle: 0°
• Included angle: 80°

Design & features

• Shape: rhombic
• Hole: cylindrical
• Coating / grade: AH120 (PVD-coated carbide)
• Material: carbide
• Chipbreaker: double-sided
• Series: ISO‑Drehwendeschneidplatten
• Application: turning

FAQ

What turning tasks is this insert best suited for? This CNMG120412 AH120 indexable insert is designed for external and internal turning where a sharp cutting edge and process security are required; it performs well in stable setups and general turning applications.

How does the AH120 grade influence performance? The AH120 grade provides enhanced wear and fracture resistance through a PVD coating on a carbide substrate, improving edge life and ensuring more consistent cutting behaviour under continuous operation.

How can compatibility with a toolholder be ensured? Compatibility depends on matching form, relief/clearance angle, tolerance class, fastening, size and thickness; the insert features a 12 mm inscribed circle, 4.76 mm thickness and a cylindrical hole to fit compatible ISO holders (refer to SKU TUN6810109 for ordering).

Is the insert indexable and how is chip control handled? Yes — the insert is double‑sided, allowing indexation to use fresh cutting edges; chip control is provided by the integrated double‑sided chipbreaker suitable for various turning conditions.

What geometric details affect cutting behaviour? The rhombic form with an 80° included angle and a 1.2 mm corner radius affects cutting force distribution and edge strength; these parameters influence chip flow, surface finish and the range of suitable feeds and depths of cut.

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.