CFGT L2020- AH871 Wendeplatten - Tungaloy

Take advantage of the combination of high hot-hardness, PVD-coated cemented carbide and ISO compatibility for reliable turning of demanding alloys; the robust edge geometry and single-sided chipbreaker support consistent surface quality and longer tool life. Order the CFGTL2020- AH871 directly via Metav Werkzeuge or ask our consultants for application-specific holder recommendations.

CFGT L2020- AH871 ISO rhombic turning insert by Tungaloy — PVD-coated grade for heat-resistant alloys

The CFGTL2020- AH871 Tungaloy insert is an ISO-rhombic turning insert designed for external and internal turning of heat-resistant alloys and other demanding materials, offering stable cutting edges and simple integration into ISO toolholder systems.

• PVD-coated carbide for heat-resistant alloys
• Rhombic shape, 80° included angle
• 25° relief angle for stable cutting edge
• Single-sided chipbreaker for controlled chips
• Cylindrical hole with 40°–60° countersink

Longer tool life on heat-resistant alloys through advanced grade and coating

The combination of the AH871 cemented carbide grade and PVD-coated surface treatment delivers enhanced hot hardness and improved resistance to thermal wear, which are decisive for machining superalloys and other difficult-to-cut materials. These material and coating choices reduce flank wear at elevated cutting temperatures and therefore extend tool life, resulting in fewer tool changes and higher process uptime. The result is a more predictable machining cycle and lower overall tooling consumption when compared with uncoated or less heat-resistant grades.

Reliable fit and fast integration into ISO toolholder systems

Manufactured to ISO standards, the insert’s rhombic form with an 80° included angle and a 25° relief angle enables predictable seating and secure clamping in a wide range of standard holders. Compatibility with a holder is determined by the insert’s form, relief angle, tolerance class, method of fastening, overall size and thickness — here 2.38 mm — so adapters or dedicated clamping sets are seldom required for correctly matched systems. The cylindrical hole with a single-sided countersink (40°–60°) supports stable fixation and repeatable positioning, reducing set-up time and minimising risk of misalignment during index changes.

Consistent chip control and improved surface finish

The integrated single-sided chipbreaker is engineered for controlled chip formation when turning demanding alloys, helping to avoid long, stringy chips and supporting safer swarf evacuation. With a stable cutting edge geometry provided by the AH871 grade, the insert promotes repeatable surface quality and dimensional stability on external and internal turning operations. Selecting the matching chipbreaker and holder stability according to the workpiece material and machining parameters will deliver the best compromise between feed, cutting speed and finished surface integrity.

System thinking for everyday productivity in turning applications

This insert is intended to be used as part of a complete system: ISO turning insert, a compatible external holder or boring bar, a support underlay or clamping set and the appropriate replacement screws. Such a system approach simplifies tool management and ensures that the cutting edge performance of the insert is fully realised in practice. The geometry and coating of this insert favour applications where thermal stability and edge robustness are priorities, making it suitable for productive machining of heat-resistant alloys in serial and job-shop environments.

For application advice on Tungaloy turning inserts and compatible holders, contact Metav Werkzeuge for tailored recommendations and exact-fit solutions — info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 6801633
• Manufacturer SKU: TUN6801633
• SKU: 6801633-Tungaloy
• Manufacturer: Tungaloy

Key dimensions

• Included angle: 80°
• Relief angle: 25°
• Plate thickness: 2.38 mm
• Plate size: L2

Design & features

• Cemented carbide substrate
• PVD coating
• Grade AH871 for heat-resistant alloys
• Rhombic plate form
• Single-sided chipbreaker
• Cylindrical hole with one-sided countersink (40°–60°)
• ISO turning insert series; compatible with matching holders and clamping sets

FAQ

What materials is this insert optimised for?
The CFGTL2020- AH871 insert from Tungaloy is optimised for heat-resistant alloys and similarly demanding materials thanks to the AH871 grade and PVD coating.

How is the insert secured in the holder?
The insert uses a cylindrical hole with a one-sided countersink (40°–60°) for positive and repeatable clamping in compatible ISO toolholders.

Which cutting operations suit this insert best?
Designed for turning, this ISO rhombic insert is suitable for both external and internal turning where thermal stability and edge life are required.

How does the chipbreaker affect performance?
The single-sided chipbreaker promotes controlled chip formation and safer swarf disposal, improving process reliability and surface finish during turning operations.

What are the key geometry specifications to check for holder compatibility?
Check the rhombic form, 25° relief angle, 80° included angle, plate thickness (2.38 mm) and size (L2) to ensure correct fit in the holder.

Is this an original Tungaloy product?
Yes — the listed article (CFGTL2020- AH871) is an original, brand-new Tungaloy turning insert with SKU 6801633-Tungaloy.

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.