CFGT R2020- AH916 Wendeplatten - Tungaloy

Benefit from an ISO‑standard rhombic insert with a sharp 25° clearance and the wear‑resistant AH916 PVD coating for stable, repeatable turning operations; order directly via Metav Werkzeuge or consult the specialists for matching holder recommendations.

CFGT R2020- AH916 — Tungaloy turning insert for ISO turning applications

A CFGTR2020- AH916 turning insert engineered for external and internal turning, featuring a rhombic R2 geometry, a one‑sided chipbreaker and a cylindrical hole with single‑side countersink.

• ISO‑standard rhombic insert R2020
• PVD‑coated AH916 grade for wear resistance
• 25° clearance for sharp cutting edges
• Cylindrical hole with 40°–60° countersink

Predictable cutting performance with ISO conformity

The rhombic geometry and ISO‑standard designation ensure straightforward integration into standard toolholders, while the 80° included angle provides a robust cutting edge suited to general turning. The PVD‑coated AH916 grade is a carbide substrate with a protective coating that increases wear resistance and reduces adhesive wear, which results in more consistent tool life. Compatibility with the holder is determined by form, clearance, tolerance class, fastening, size and thickness, so correct matching reduces set‑up time and supports steady production rhythms.

Improved process security through chip control and clamping

A one‑sided chipbreaker is designed to deliver controlled chip formation for common turning tasks, reducing the risk of entanglement and promoting safer evacuation. The insert’s cylindrical hole together with a single‑sided countersink (40°–60°) secures stable clamping in the pocket and aids correct seating under cutting forces. These features combine to lower vibration, preserve the integrity of the cutting edge and minimise unscheduled stoppages, supporting higher first‑pass yields and better surface quality.

Easy integration into existing turning systems

The insert is supplied as part of an ISO turning system that comprises the insert itself plus a matching external holder or boring bar, a shim/clamping set and replacement screws. The R2 size and rhombic form make it suitable for standardised toolholders; however, correct selection of holder geometry and tolerance class is essential for repeatable accuracy. Clear reference to the R2020‑ designation and the insert’s hole and countersink details ensures correct procurement of mating components and reduces the risk of assembly errors.

Selection advice and reliable in‑process behaviour

The AH916 grade is specified as wear‑ and fracture‑resistant, intended where a sharp cutting edge and process security are both required. For best results, choose the chipbreaker and grade that match the workpiece material and the required stability of the machining set‑up. Regular inspection of the seat, clamping elements and the insert cutting edge helps detect early signs of wear or chipping; replacement of the insert at the first signs of severe wear maintains part quality and prevents secondary damage to holders or workpieces.

For secure, high‑throughput turning with Tungaloy AH916 inserts, contact Metav Werkzeuge for tailored recommendations and technical data at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6801679
• Manufacturer SKU: TUN6801679
• Model series: ISO turning inserts
• Material: Carbide (PVD‑coated)
• Grade/coating: AH916 (PVD)
• Application: Turning
• Shape: Rhombic
• Size: R2
• Hole: With cylindrical hole and single‑side countersink

Facts

• Included angle: 80°
• Clearance angle: 25°
• Countersink angle: 40°–60°
• Manufacturer article number: 6801679
• SKU: 6801679-Tungaloy

Special features

• PVD‑coated AH916 grade
• One‑sided chipbreaker
• ISO‑standard insert geometry
• Rhombic form for versatile turning
• Cylindrical hole with single‑side countersink
• Requires matching external holder or boring bar
• System includes shim/clamping set and replacement screws

FAQ

What is the main benefit of the AH916 grade?
The AH916 grade is a PVD‑coated carbide developed for wear‑ and fracture‑resistant performance in turning; the CFGTR2020‑ AH916 insert provides a sharp cutting edge and enhanced process security for stable machining.

How is holder compatibility determined?
Compatibility is defined by the insert form, clearance angle, tolerance class, fastening method, size and thickness; ensure the holder matches the CFGTR2020‑ AH916 geometry and the R2020‑ designation for correct seating.

What does the cylindrical hole and single‑side countersink achieve?
The cylindrical hole with a 40°–60° countersink secures the insert in the pocket, promotes even load distribution and improves clamping reliability during turning operations.

Which system components are required to fit the insert?
A complete system comprises the insert plus a suitable external holder or boring bar, a shim or clamp set and the correct replacement screws to guarantee secure assembly and repeatable positioning.

When should the insert be replaced?
Replace the insert when significant flank wear, chipping or loss of dimensional control is observed; following holder‑manufacturer torque and mounting guidance ensures correct clamping and prolongs service life.

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.