CNMG 190612 AH120 Wendeplatten - Tungaloy

Take advantage of the combination of PVD‑coated carbide, ISO‑standard geometry, and robust chip control for reliable turning performance; order the CNMG190612 AH120 insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMG190612 AH120 CNMG turning insert by Tungaloy — PVD‑coated carbide, 80° geometry

The CNMG190612 AH120 is an ISO‑standard rhombic indexable insert designed for external and internal turning, offering a sharp, wear‑resistant cutting edge and dependable process stability.

• PVD-coated carbide grade AH120
• Sharp, wear- and chipping‑resistant edge
• ISO‑standard rhombic CNMG190612 insert
• 80° geometry with 1.2 mm corner radius
• Double‑sided chipbreaker, cylindrical hole

High‑performance turning through optimised grade and coating

The AH120 grade is a PVD‑coated carbide engineered for combination demands of edge sharpness and process security; this results in consistent cutting forces and extended edge life under interrupted or continuous cuts. The coating reduces adhesion and thermal wear, meaning the insert maintains a stable cutting profile over longer cycles. For production environments where cycle time and tool life affect throughput, this grade supports a lower cost per component by reducing frequent indexings and tool changes.

Geometry that delivers repeatable accuracy and surface finish

An 80° cutting geometry combined with a 1.2 mm corner radius produces a wide contact area that improves stability during external and internal turning. The rhombic form ensures predictable chip flow and positional repeatability on indexable holders, which aids in achieving consistent surface quality. The moderate corner radius balances edge strength with finish capability, making the insert suitable for light to medium finishing passes without sacrificing robustness.

Chip control and secure clamping for efficient machining

Equipped with a double‑sided chipbreaker and a cylindrical locating hole, the insert supports effective chip shaping and secure clamping in compatible holders. The chipbreaker reduces the risk of built‑up edge and curling chips that can damage the workpiece or tool, while the hole style ensures positive seating and repeatable location during index changes. Together these features reduce machine downtime and help maintain a steady production flow.

Compatibility, handling and practical benefits on the shop floor

As an ISO indexable turning insert, compatibility with a suitable external holder or boring bar is determined by form, clearance angle, tolerance class, attachment type, size and thickness. The zero degree clearance angle and standard plate thickness of 6.35 mm simplify selection for many ISO holders. This indexable design reduces inventory complexity: spare plates and standard fastening hardware allow fast on‑machine replacement, improving uptime and simplifying tool management.

Contact Metav Werkzeuge for precise holder recommendations, availability and to discuss the optimal AH120 grade for the intended turning application — eMail: info@metav-werkzeuge.com · Tel: +49 2822 7131930

Technical data

• Article number: 6802291
• Manufacturer SKU: TUN6802291
• SKU: 6802291-Tungaloy
• Model series: ISO indexable turning inserts

Facts

• Insert size: 19 mm
• Thickness: 6.35 mm
• Corner radius: 1.2 mm
• Geometry angle: 80°
• Clearance angle: 0°

Design & features

• PVD‑coated carbide grade AH120
• Rhombic CNMG form
• Double‑sided chipbreaker
• Cylindrical locating hole for secure clamping
• ISO designation CNMG190612
• Application: turning (external and internal)
• Compatibility determined by form, clearance, tolerance class, attachment, size and thickness

FAQ

What materials is this insert suitable for?
The CNMG190612 AH120 insert is a PVD‑coated carbide grade designed for a broad range of materials where a sharp edge and process security are required; material selection should match the AH120 characteristics for optimal results.

What are the key dimensional and geometric specifications?
Key specifications include a 19 mm size, 6.35 mm thickness, 1.2 mm corner radius and an 80° geometry; these dimensions enable stable cutting and predictable seating in ISO holders.

How does the chipbreaker affect machining performance?
The double‑sided chipbreaker on this indexable plate shapes chips reliably and reduces the chance of built‑up edge, improving surface finish and tool life during continuous and interrupted cuts.

Is this insert reversible or indexable?
Yes, the CNMG190612 AH120 is double‑sided and indexable, allowing rotation to a fresh cutting edge to extend usable life before replacement.

Which holders are compatible with this ISO insert?
Compatibility requires a holder or boring bar matching the CNMG form, clearance angle, tolerance class, attachment method, size and thickness; Metav Werkzeuge can advise on exact holder matches for the AH120 grade and CNMG190612 designation.

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.