CNMG 190612 AH120 Wendeplatten - Tungaloy

Benefit from a combination of durable PVD-coated carbide, stable edge geometry and reliable chip control for consistent turning performance; order the CNMG190612 AH120 Tungaloy turning insert directly via Metav Werkzeuge or consult our experts if technical advice is required.

CNMG190612 AH120 CNMG Turning Insert — PVD-coated carbide, 80° rhombic, 1.2 mm radius (Tungaloy)

CNMG190612 AH120 is an ISO-standard rhombic insert for general external and internal turning applications, designed to deliver process security where a sharp cutting edge and reliable wear resistance are required.

• PVD-coated carbide for wear resistance
• 80° rhombic geometry for stable turning
• 1.2 mm corner radius for robust edge
• Double-sided chipbreaker with cylindrical hole

Consistent machining through optimised grade and coating

The insert combines a PVD-coated surface with a tough carbide substrate to extend tool life under machining loads. The AH120 grade is specified as wear- and chipping-resistant, which supports longer uninterrupted cycles and reduces tool change frequency. For shops seeking measurable gains in uptime, this results in a more predictable process and fewer unplanned pauses during production. The hardened coating also helps maintain a sharp cutting edge for superior surface finishes on turned components.

Geometry that boosts stability and control

With an 80° rhombic geometry and a 1.2 mm corner radius, the indexable insert provides a balance between edge strength and cutting performance. The geometry is particularly effective for medium to heavy cuts where tool rigidity matters; the larger contact area reduces edge deflection and improves dimensional stability. The double-sided chipbreaker contributes to controlled chip formation, simplifying evacuation and reducing the risk of re-cutting, which in turn helps achieve consistent part quality.

Compatibility and system considerations for reliable assembly

These ISO inserts are compatible with holders when matched by form, clearance angle, tolerance class, mounting style, size and thickness. The standardised designation (ISO 190612) and the rhombic shape ease selection of the appropriate outer holder or boring bar, plus the correct backing/clamping set and replacement screws where required. The insert includes a cylindrical hole and a plate thickness of 6.35 mm, enabling secure clamping and repeatable positioning across changeovers.

Practical benefits for production and set-up

Using an ISO-standard indexable insert streamlines inventory and reduces the complexity of tool planning. The combination of PVD coating and the AH120 grade delivers reliable performance across diverse turning tasks where a sharp cutting edge and process security are priorities. Shops benefit from fewer interrupts for edge-related failures and more consistent surface quality, while toolroom staff appreciate the standard dimensions that simplify assortment management.

For process-reliable turning with Tungaloy’s AH120 grade, contact Metav Werkzeuge for ordering and technical consultation via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6802295
• Manufacturer SKU: TUN6802295
• Manufacturer article number: 6802295

Numbers / Core technical data

• ISO designation: 190612
• Plate form/shape: rhombic (CNMG)
• Included hole style: cylindrical hole
• Corner radius: 1.2 mm
• Clearance angle: 0°
• Plate thickness: 6.35 mm
• Plate size: 19 mm
• Insert angle: 80°

Designs / Special features

• Material: carbide
• Coating / grade: PVD-coated, AH120
• Chipbreaker: double-sided
• System components: ISO insert, compatible outer holder or boring bar, backing/clamping set, replacement screws
• Application: turning (external and internal)

FAQ

What is the primary application for this insert?
This insert is intended for turning operations, suitable for both external and internal turning where a sharp cutting edge and process security are required; the CNMG190612 AH120 Tungaloy insert is specified for such tasks.

Which materials is the AH120 grade designed to handle?
The AH120 grade is described as wear- and chipping-resistant, making the insert appropriate where durability and a stable cutting edge are needed; material-specific chipbreaker and grade selection are recommended depending on the workpiece.

How is holder compatibility ensured for this ISO insert?
Compatibility depends on matching the insert form, clearance angle, tolerance class, mounting, size and thickness; the ISO designation and the stated dimensions (19 mm size, 6.35 mm thickness, cylindrical hole) aid correct holder selection for the CNMG190612 AH120.

What geometry and edge specifications support process stability?
The 80° rhombic geometry combined with a 1.2 mm corner radius provides edge strength and reduces deflection in medium to heavy cuts, while the double-sided chipbreaker promotes controlled chip formation.

What are the key features of the PVD coating on this insert?
The PVD-coated surface enhances wear resistance and helps maintain a sharp cutting edge for extended periods, contributing to fewer tool changes and more consistent surface finish when using the CNMG190612 AH120 insert.

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.