CFGT R2020- AH920 Wendeplatten - Tungaloy

Benefit from the combination of AH920 PVD-coated carbide for superior wear resistance and an ISO-standard rhombic R2 geometry that ensures consistent, sharp cutting performance in turning operations; order the CFGTR2020- AH920 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if needed.

CFGTR2020- AH920 Tungaloy turning insert — PVD-coated carbide, rhombic R2

The CFGTR2020- AH920 Tungaloy insert is an ISO-standard rhombic turning insert designed for reliable external and internal turning with a pronounced cutting angle and secure clamping interface.

• ISO-standard rhombic R2 geometry
• AH920 PVD-coated carbide for wear resistance
• 80° cutting edge with 25° relief angle
• Cylindrical hole with single-side countersink

Consistent edge life and process security for turning

The AH920 grade is a PVD-coated carbide designed to deliver a balance of wear resistance and edge stability, making it suitable where a sharp cutting edge and secure process behaviour are required. This insert offers a predictable tool life through optimised coating hardness and substrate support, which reduces the frequency of index changes and supports stable cycle times. Using a PVD coating improves adhesion and thermal barrier properties; as a result, tool wear is slowed and surface finish quality is maintained over longer cuts. For production environments that demand repeatability, the hardened coating and substrate combination contribute directly to reduced downtime and fewer rejected parts.

Seamless ISO compatibility and straightforward mounting

Compatibility with matching toolholders is determined by geometry, relief angle, tolerance class, fastening method, size and thickness. The ISO-standard outline and rhombic R2 format simplify the selection of external holders and boring bars, while the 80° cutting angle combined with a 25° relief angle delivers a reliable balance between robustness and shear efficiency. The insert comes with a cylindrical hole and a single-side countersink (40°–60°) to ensure secure clamping and repeatable positioning. These features reduce setup variability and ensure that the insert seats correctly in commercially available ISO-compatible clamping systems, supporting consistent cutting forces and predictable tool behaviour.

Practical guidance on chipbreaker and application choice

The insert is supplied with a one-sided chipbreaker profile; selecting the correct chip control geometry and grade should align with the workpiece material, the machining method and the overall rigidity of the setup. For example, more stable machining conditions allow for more aggressive cutting parameters and can exploit the sharp edge of this grade; less rigid setups benefit from moderate feeds to avoid chipping. The recommended approach is to match the chipbreaker and grade to the application: choose a chip control adapted to the expected chip length and a grade that prioritises edge stability when process security is critical. This targeted selection improves machining efficiency and lowers the risk of edge breakout.

Tangible production benefits and everyday performance

In everyday shop-floor use the insert contributes to efficient production through stable chip formation and a sharp initial edge that helps achieve consistent surface finishes. The combination of geometry and PVD coating reduces flank wear and supports repeatable machining cycles, translating into fewer unscheduled stops and improved throughput. By prioritising process reliability and predictable tool life, the insert helps maintain part tolerances and minimises rework. For operations seeking improved productivity without compromising on component quality, the construction and grade of this turning insert provide measurable operational advantages.

For technical advice, availability and orders of Tungaloy turning inserts such as the CFGTR2020- AH920, contact Metav Werkzeuge via info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability and application details

Technical data

• Article number: 6801683
• Manufacturer SKU: TUN6801683
• SKU: 6801683-Tungaloy
• Model series: ISO turning inserts
• Material: carbide
• Coating/grade: AH920 (PVD-coated)

Facts

• Cutting angle: 80°
• Relief angle: 25°
• Plate size: R2
• Hole: with cylindrical hole
• Countersink angle: 40°–60°

Special features

• Rhombic plate shape
• One-sided chipbreaker
• ISO-standard geometry
• Suitable for external and internal turning
• System components: matching external holder or boring bar, support/clamping set, replacement screws

FAQ

Is this insert suitable for both external and internal turning? Yes. The CFGTR2020- AH920 Tungaloy insert is designed for external and internal turning applications and performs well where a sharp cutting edge and process security are required.

What does the AH920 grade offer compared with other grades? The AH920 grade combines a PVD-coated surface with a carbide substrate to provide enhanced wear resistance and a stable cutting edge, improving consistency in production with Tungaloy turning inserts.

How is holder compatibility determined for this insert? Compatibility is defined by form, relief angle, tolerance class, fastening, size and thickness; secure seating is achieved via the cylindrical hole and single-side countersink supplied with the insert.

Which chipbreaker should be chosen for varying materials? Select the chipbreaker based on material, machining method and machine/setup stability; the supplied one-sided chipbreaker suits many turning tasks, but optimisation may be required for specific workpiece materials.

What components are required to mount the insert in a turning system? Typical system assembly includes a suitable ISO external holder or boring bar, a support/clamping set and replacement screws compatible with the insert’s hole and countersink form.

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.