CGEU R2020- AH772 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide AH772 for wear- and fracture-resistant performance and the ISO-standard geometry for straightforward tool changeovers; order the insert directly via Metav Werkzeuge or consult the specialists for holder compatibility.

CGEU R2020- AH772 indexable insert for turning by Tungaloy

CGEUR2020- AH772 is an ISO-standard indexable turning insert designed for external and internal turning applications, featuring a 30° relief angle and a rhombic form for versatile machining.

• PVD-coated carbide AH772 for process reliability
• ISO-standard rhombic insert, size R2
• 30° clearance angle for versatile turning
• Cylindrical hole with double countersink (40°–60°)
• Double-sided chipbreaker for consistent chips

Consistent process reliability through ISO conformity

The insert follows an ISO-standard format, which simplifies replacement and inventory management on the shop floor. Compatibility with the toolholder is determined by insert form, 30° clearance angle, tolerance class, mounting method, size and thickness; this makes it straightforward to match the insert to established holder systems. The standardised geometry reduces downtime during tool changes and supports predictable repeatability in serial production, improving throughput and reducing set-up variability.

Longer tool life from grade and coating

The cutting grade is a PVD-coated carbide labelled AH772, developed for a balance of wear- and fracture-resistant behaviour while maintaining a sharp cutting edge. The PVD coating reduces abrasive wear and helps maintain edge integrity under thermal load, which translates into fewer interruptions for insert changes and lower tool consumption. For machining operations that demand both a precise edge and robust performance, this grade provides a cost-effective compromise between longevity and cutting quality.

Geometry engineered for chip control and secure clamping

The insert’s rhombic shape and R2 size offer flexibility for both profile and simple turning tasks, while the double-sided chipbreaker ensures predictable chip formation and evacuation, which is essential for stable cutting and surface finish. The centre cylindrical hole with double countersink (40°–60°) provides a reliable clamping interface with compatible holders; the secure fixation reduces the risk of insert movement and helps maintain concentricity. With a nominal 2.38 mm thickness and an 80° included angle, the geometry supports a balance of rigidity and accessibility for a broad range of workpiece formats.

Practical application guidance and stock details

Typical usage covers external and internal turning operations; selection of the exact chipbreaker and grade should be matched to the workpiece material, machining parameters and machine stability. The insert is supplied in the ISO series configuration and requires the appropriate outer holder or boring bar, plus backing pad and clamping set. For identification, the manufacturer article number and SKU are listed in the technical details to ensure correct ordering and stock control. If there is uncertainty about holder compatibility or optimal grade choice, technical consultation is recommended to avoid incorrect selection and to ensure productive machining cycles.

Contact Metav Werkzeuge for tailored advice on the CGEUR2020- AH772 indexable insert and assistance with holder matching; eMail info@metav-werkzeuge.com or call +49 2822 7131930 to request specification support and availability

Technical data

• Manufacturer article number: 6860377
• SKU: 6860377-Tungaloy
• Manufacturer SKU: TUN6860377
• Brand: Tungaloy
• Model series: ISO-turning indexable inserts
• Application: Turning

Facts

• Clearance angle: 30°
• Included angle: 80°
• Insert thickness: 2.38 mm
• Insert size: R2

Special features

• PVD-coated carbide grade AH772
• Wear- and fracture-resistant grade for turning
• Rhombic insert shape
• Double-sided chipbreaker
• Cylindrical hole with double countersink (40°–60°)
• ISO-standard geometry; compatibility via form, clearance, tolerance, mounting, size, thickness

FAQ

What turning operations is this insert suitable for? The CGEUR2020- AH772 insert by Tungaloy is designed for both external and internal turning; select the chipbreaker and grade according to the workpiece material and machining conditions.

What are the benefits of the AH772 grade and PVD coating? AH772 is a PVD-coated carbide grade offering improved resistance to wear and chipping; the coating enhances edge retention and process security for prolonged cutting performance.

How is the insert secured in the holder? The insert uses a cylindrical hole with a double countersink (40°–60°) for mechanical clamping; holder compatibility depends on insert form, relief angle, tolerance class, mounting and thickness.

Can the insert be indexed to use both sides? Yes, the insert features a double-sided chipbreaker, allowing indexing to a fresh cutting edge and extending usable tool life.

Which references should be used when ordering this insert? Refer to manufacturer article number 6860377 and SKU 6860377-Tungaloy to ensure the correct CGEUR2020- AH772 indexable insert is supplied.

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.