CFGT L2020- AH877 Wendeplatten - Tungaloy

Take advantage of a high‑temperature capable, PVD‑coated carbide grade for demanding turning applications and the proven compatibility of ISO‑standard indexable inserts; this combination supports stable cutting edges and predictable tool life. Order directly via Metav Werkzeuge or consult the technical team for selection support.

CFGT L2020- AH877 Tungaloy turning insert, rhombic L2, 80°

CFGT L2020- AH877 Tungaloy turning insert for external and internal turning of demanding, heat‑resistant materials.

• PVD‑coated carbide AH877 for hot hardness
• Rhombic L2 geometry, included angle 80°
• 25° relief angle for versatile engagement
• Cylindrical hole + one‑sided countersink (40°–60°)

Greater process reliability through a heat‑resistant grade

The AH877 grade delivers elevated hot hardness and a stable cutting edge, designed specifically for machining heat‑resistant alloys and other demanding materials. The combination of a PVD‑coating and a hard carbide substrate reduces flank wear and maintains edge integrity at elevated cutting temperatures, which translates into fewer interruptions and more predictable cycle times. For production environments where consistent component quality and tool life are required, this specification supports a steady machining process and reduces unplanned tool changes.

Simple integration with ISO turning systems

Compatibility with holding systems is governed by insert form, clearance angle, tolerance class, fixing method, size and thickness. The indexable insert is produced to ISO dimensions and fits in standard holders when these parameters match. The insert features a cylindrical hole with a one‑sided countersink (40°–60°) to suit common clamping concepts and ensure secure axial and radial seating. The system typically comprises the ISO insert, a matching external holder or boring bar, a shim/clamping set and replacement screws, facilitating straightforward assembly and repeatable positioning.

Practical benefits for day‑to‑day turning

The rhombic L2 geometry with an included angle of 80° and a 25° relief offers a balance of edge strength and cutting accessibility, making the insert suited to both external and internal operations. The single‑sided chipbreaker helps to control chip form for typical turning conditions and stabilise evacuation in continuous cuts. By selecting the appropriate chipbreaker and the AH877 grade for the workpiece and machining stability, users gain improved surface quality and extended intervals between indexings, creating a measurable impact on productivity and overall running costs.

How to choose and what to expect in application

When selecting an insert, match the chipbreaker and grade to the workpiece material and rigidity of the setup. The PVD‑coated surface provides a wear‑resistant top layer that resists adhesion and oxidation at temperature, while the underlying carbide body maintains toughness. The insert is intended for demanding applications where thermal stability and edge retention are priorities; choose a holder and clamping arrangement compatible with the insert geometry to obtain the full performance benefits. For clarification on compatibility or to discuss alternative chipbreaker options, technical advice is available.

For demanding turning tasks select the Tungaloy AH877 PVD‑coated insert and contact Metav Werkzeuge for tailored application advice and ordering at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• SKU: 6801639-Tungaloy
• Manufacturer SKU: TUN6801639
• Manufacturer article number: 6801639
• Manufacturer: Tungaloy

Facts

• Model series: ISO turning indexable inserts
• Shape: Rhombic, 80°
• Size: L2
• Relief angle: 25°
• Hole style: cylindrical hole + one‑sided countersink (40°–60°)
• Chipbreaker: single‑sided
• Grade/coating: AH877 PVD‑coated carbide

Applications & features

• Application: turning (external and internal)
• Suitable for: heat‑resistant alloys and demanding materials
• System components: ISO insert, matching holder/boring bar, shim/clamping set, replacement screws
• Compatibility factors: form, clearance angle, tolerance class, fixing, size, thickness

FAQ

Which materials is this insert best suited for?
This insert, specified as CFGTL2020- AH877 Tungaloy‑wendeplatte, is formulated for heat‑resistant alloys and other demanding materials, exploiting the AH877 grade’s thermal stability and edge retention.

What does the AH877 designation indicate?
AH877 denotes a PVD‑coated carbide grade optimised for high warm‑hardness and a stable cutting edge, making it suitable where thermal resistance and consistent tool life are required.

How is the insert secured in a holder?
The insert uses a cylindrical hole with a one‑sided countersink (40°–60°); secure seating depends on matching holder form, clearance angle, tolerance class and fixing method to the insert dimensions.

Can this geometry be used for internal turning?
Yes — the rhombic L2 geometry and 25° relief support both external and internal operations; choice of chipbreaker and machining parameters should match the application for optimal chip control.

What are the key geometric details to verify before purchase?
Check the rhombic L2 size, included angle 80°, relief angle 25°, and hole/countersink style to ensure compatibility with the intended holder and clamping system.

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.