CNMG 120412 AH8015 Wendeplatten - Tungaloy

Benefit from the combination of durable cutting performance, consistent chip control and simple compatibility checks for efficient turning operations; order the CNMG120412 AH8015 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if needed

CNMG120412 AH8015 indexable turning insert — Tungaloy, PVD-coated carbide

An CNMG120412 AH8015 indexable turning insert designed for external and internal turning, optimised for heat‑resistant alloys and general-purpose machining

• PVD-coated carbide grade AH8015
• 80° rhombic ISO CNMG form
• Corner radius 1.2 mm for robust cutting
• Cylindrical hole for secure clamping
• Double-sided chipbreaker for versatility

Reliable performance on heat-resistant alloys

The CNMG120412 AH8015 insert is engineered to balance wear resistance and cutting-edge stability for the machining of heat‑resistant alloys. The combination of a PVD-coated surface and a tough carbide substrate reduces flank wear and helps maintain consistent tool life under elevated temperatures. This stability translates into fewer tool changes, lower process variation and a predictable cycle time — a clear efficiency advantage for production and jobbing environments.

Clear guidance on holder compatibility and secure clamping

Compatibility with a clamping system depends on plate form, clearance angle, tolerance class, fastening method, size and thickness. The rhombic 80° geometry and the cylindrical hole require a matching CNMG‑type holder or boring bar with the correct pocket and screw arrangement. The presence of a central hole and the standard ISO shape ensure secure clamping and repeatable seating, which reduces vibration and improves surface finish. For safe integration, confirm holder form and tolerance before fitting an insert.

Productivity gains through chip control and geometry

The double-sided chipbreaker design delivers controlled chip formation across a range of feeds, helping to avoid long, entangling swarf and to maintain uninterrupted machining. With a corner radius of 1.2 mm, the insert offers a compromise between edge strength and achievable surface quality: it supports heavier cuts without sacrificing finish when moderate feeds are used. Together, these features increase on‑part time and lower secondary operations for shops aiming to raise throughput.

Practical choice and handling advice for stable application

Select this grade when machining demanding alloys where thermal stability is required; the AH8015 grade is a first choice for general work in heat‑resistant materials thanks to its balanced properties. The insert is double-sided, allowing indexation that reduces tooling cost per edge. When mounting, ensure clean seating surfaces and the correct torque on the clamping screw; minor deviations in seat cleanliness or screw preload will affect repeatability more than the insert design itself. For questions about matching holders or recommended cutting data, technical support resources are available.

For original Tungaloy CNMG120412 AH8015 inserts and expert advice contact Metav Werkzeuge — availability and application support via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6741636
• SKU: 6741636-Tungaloy
• Manufacturer SKU: TUN6741636
• Model series: ISO-Drehwendeschneidplatten
• Material: carbide

Facts

• Form / designation: CNMG120412
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 1.2 mm
• Included angle: 80°
• Clearance (relief) angle: 0°
• Hole: with hole

Special features

• Grade: AH8015
• Coating: PVD
• Plate shape: rhombic
• Hole style: cylindrical hole
• Chipbreaker: double-sided
• Application: turning

FAQ

What materials is this insert suitable for?
The CNMG120412 AH8015 Tungaloy indexable insert (SKU 6741636-Tungaloy) is intended primarily for heat‑resistant alloys and general turning applications where a balance of wear resistance and edge stability is required.

How does the chipbreaker affect machining?
The double‑sided chipbreaker on this insert improves chip control across a range of feeds, reducing swarf issues and enabling more consistent production cycles when the CNMG120412 AH8015 insert is used in matched holders.

Which holders are compatible with this ISO plate?
Compatibility is determined by plate form, clearance angle, tolerance, fastening, size and thickness; therefore a CNMG‑compatible external holder or boring bar with the correct pocket for an 80° rhombic plate and a cylindrical screw clamp is required.

Can the insert be indexed to use both sides?
Yes, the insert is double‑sided and can be indexed to use both cutting edges, increasing the usable life and improving cost‑efficiency per edge.

What is the recommended corner radius for stability and finish?
The 1.2 mm corner radius provides a robust cutting edge for heavier cuts while still allowing acceptable surface finishes at moderate feeds, offering a practical compromise for many turning tasks.

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.