CFGT R2020- AH921 Wendeplatten - Tungaloy

High-performance ISO turning insert with PVD-coated AH921 carbide and a 25° clearance provides durable wear resistance and reliable cutting performance; compatibility with standard tool holders is determined by form, tolerance class and dimensions. Order the insert directly via Metav Werkzeuge or consult the team for holder selection and matching components.

CFGT R2020- AH921 Tungaloy turning insert (ISO, rhombic R2, 25° clearance)

A CFGT R2020- AH921 indexable turning insert designed for external and internal turning, engineered to combine a sharp cutting edge with high process reliability.

• PVD-coated carbide for wear resistance
• ISO rhombic R2 geometry, 80° included angle
• Cylindrical hole with single-sided countersink

Consistent cutting performance and longer tool life

The insert’s PVD-coated AH921 grade pairs a hard, wear-resistant carbide substrate with a thin physical vapour deposition layer that supports sustained edge integrity. The result is a sharp cutting edge that resists abrasive wear and reduces flank build-up, which prolongs service intervals and helps maintain dimensional consistency on series parts. The coating also improves resistance to micro-chipping during interrupted cuts, supporting steady production throughput.

Standardised geometry for reliable integration

Designed to the ISO series, the insert’s ISO R2020- designation and rhombic R2 form allow simple assessment of compatibility: shape, 25° clearance, tolerance class, fixation method, size and thickness determine the correct holder selection. This insertion geometry simplifies stocking and changeover in mixed-machine environments and enables straightforward retrofitting into existing tool sets, improving machine uptime and reducing setup complexity.

Stable clamping and efficient chip control

The combination of a cylindrical hole with a single-sided countersink (40°–60°) and a one-sided chipbreaker provides secure clamping and predictable chip formation. The hole style supports positive mechanical fixation while the countersink angle assists in distributing clamping forces, which reduces the risk of insert movement under heavy cuts. Controlled chips aid evacuation and protect the workpiece surface, contributing to consistent finishing with fewer interruptions.

Application guidance and suitability

Intended for external and internal turning, the insert excels where a precise, repeatable cutting edge is required. Selection of the appropriate chipbreaker and the AH921 grade should be matched to workpiece material, cutting strategy and machine stability to optimise performance. The insert integrates into a system comprising a matching external holder or boring bar, a shim/clamp set and replacement screws to complete a secure and productive tool assembly.

For original Tungaloy quality and quick availability, order CFGT R2020- AH921 turning inserts via Metav Werkzeuge or contact the Metav Werkzeuge consultants at info@metav-werkzeuge.com / +49 2822 7131930 for holder matching and delivery options

Technical data

• Article number: 6801684
• SKU: 6801684-Tungaloy
• Manufacturer SKU: TUN6801684
• Model series: ISO turning indexable inserts

Facts

• Clearance angle: 25°
• Included angle: 80°
• Size: R2
• ISO code: R2020-
• Countersink angle: 40°–60°

Special features

• Material: carbide
• Coating / grade: PVD-coated AH921
• Chipbreaker: one-sided
• Plate form: rhombic
• Hole: cylindrical hole with single-sided countersink
• Application: external and internal turning
• Compatibility: determined by form, clearance, tolerance class, fixation, size and thickness
• System components: ISO insert, matching external holder or boring bar, shim/clamp set and replacement screws

FAQ

What applications is this insert intended for?
The CFGT R2020- AH921 insert is intended for external and internal turning operations where a sharp cutting edge and process reliability are required.

What benefits does the AH921 grade offer?
The AH921 PVD-coated grade on the CFGT R2020- offers enhanced wear resistance and improved resistance to micro-chipping, supporting longer tool life and stable cutting performance.

How is the insert secured and what is the hole style?
The insert features a cylindrical hole with a single-sided countersink (40°–60°) that enables positive clamping in standard ISO fixtures, contributing to secure fixation and consistent machining.

Which holder characteristics must be matched to this insert?
Compatibility is defined by form, 25° clearance, tolerance class, fixation method, size and thickness; select a matching external holder or boring bar compatible with the ISO R2020- geometry and the CFGT series.

What chip control can be expected from this insert?
With its one-sided chipbreaker, the insert produces controlled chips that facilitate evacuation and help maintain surface finish during turning operations.

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.