CFGT L2020- AH878 Wendeplatten - Tungaloy

The combination of PVD-coated AH878 grade and the rhombic L2 form ensures stable cutting edges and extended tool life when machining heat‑resistant alloys; compatibility with ISO holders and a secure cylindrical hole with countersink supports consistent clamping. Order the insert directly via Metav Werkzeuge or consult the in‑house specialists for holder matching and process setup.

CFGT L2020- AH878 turning insert by Tungaloy — PVD-coated carbide, rhombic L2, 25° relief

CFGTL2020- AH878 Tungaloy turning insert designed for demanding turning operations on heat‑resistant alloys, offering high hot hardness and reliable edge stability in ISO‑standard tool systems.

• PVD-coated carbide grade AH878
• Designed for heat‑resistant alloys
• Rhombic L2 form, 25° relief angle
• Cylindrical hole with countersink 40°–60°

Consistent performance on high-temperature materials

The PVD coating combined with the AH878 carbide grade delivers elevated hot hardness and wear resistance specifically for machining heat‑resistant alloys and other demanding materials. This results in a stable cutting edge, fewer unexpected interruptions and a more predictable tool life, which contributes to consistent cycle times and surface finishes. The design is particularly suitable where elevated cutting temperatures occur, reducing flank wear and preserving dimensional accuracy over extended cuts.

Secure mounting and ISO compatibility for reliable production

As an ISO‑standard turning insert, compatibility depends on form, relief angle, tolerance class, fastening method, size and thickness. The rhombic L2 form with a 25° relief angle and an included angle of 80° provides versatile engagement for both external and internal turning. The cylindrical hole with a single‑sided countersink (40°–60°) ensures reliable clamping in compatible holders, while the standardised geometry simplifies tool management across different machines. Choosing the correct holder, shim and clamping set maintains process stability and repeatability.

Controlled chip formation and process stability

The insert’s one‑sided chipbreaker promotes controlled chip evacuation in a range of turning tasks, which helps to reduce machine downtime and improve operator safety. By pairing the chipbreaker type with the AH878 grade and appropriate cutting data, chip shapes become predictable and less likely to cause surface defects or tool interference. This focused chip control supports higher productivity and reduces the need for manual chip handling during long production runs.

Practical system setup and economical machining

The operation is based on a complete system: ISO insert, matched external holder or boring bar, a supporting shim/clamp set and spare screws. This system approach facilitates quick insert changes and secure reassembly, minimising shopfloor downtime. The PVD‑coated carbide composition balances wear resistance and edge toughness to achieve a cost‑efficient cutting solution: fewer insert changes, steadier part quality and improved throughput for serial production. The SKU and manufacturer article numbers are available to streamline procurement and spare part matching.

For robust turning of heat‑resistant alloys with the AH878 grade, contact Metav Werkzeuge to request the CFGTL2020- AH878 insert (SKU 6801640-Tungaloy) and receive tailored advice on holder compatibility and optimal cutting data

Technical Data

• Article number: 6801640
• SKU: 6801640-Tungaloy
• Manufacturer SKU: TUN6801640
• Model series: ISO turning indexable inserts
• Material: carbide
• Grade/coating: AH878, PVD-coated
• Application: turning
• Shape: rhombic (L2)
• Relief angle: 25°
• Included angle: 80°
• Hole: with hole
• Hole style: cylindrical hole + single-sided countersink (40°–60°)
• Chipbreaker: one-sided
• Designation base: CFGTL2020-
• ISO code: L2020-

Numbers / Core technical data

• Relief angle: 25°
• Included angle: 80°
• Countersink range: 40°–60°
• Manufacturer article number: 6801640
• SKU: 6801640-Tungaloy
• ISO series: L2020-

Special features / Versions

• PVD-coated carbide grade AH878
• Optimised for heat‑resistant alloys and demanding materials
• Rhombic L2 form for versatile turning
• Cylindrical hole with single‑sided countersink for secure clamping
• One‑sided chipbreaker for controlled chips
• ISO‑standard geometry for holder compatibility
• System approach: insert + holder + shim/clamp set + spare screws

FAQ

What materials is this insert suited for?
The CFGTL2020- AH878 insert is formulated for heat‑resistant alloys and other demanding workpiece materials, leveraging the AH878 grade and PVD coating to retain hardness at elevated temperatures.

How does the insert secure to the holder?
The rhombic L2 insert uses a cylindrical hole with a single‑sided countersink (40°–60°) for positive clamping; compatibility with the holder is determined by form, relief angle, tolerance and fastening method.

Is the chip control suitable for internal turning?
Yes, the one‑sided chipbreaker is designed to manage chips effectively in both external and internal turning when paired with appropriate cutting data and stable tool setup.

What does the AH878 grade offer compared with standard carbide?
The AH878 grade provides higher hot hardness and a stable cutting edge under elevated temperatures, reducing flank wear and extending usable tool life in tough machining conditions.

Which ISO series and designation should be ordered for a matching holder?
Order holders compatible with the L2020- (CFGTL2020-) ISO designation and ensure the clamping set matches the rhombic L2 form and 25° relief to guarantee correct fit and function.

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.