CFGT R2020- AH919 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated AH919 carbide, 25° relief angle and ISO rhombic geometry to achieve reliable, repeatable turning performance; order directly via Metav Werkzeuge or request application advice from our consultants.

CFGT R2020- AH919 indexable turning insert — ISO rhombic insert for external and internal turning by Tungaloy

CFGTR2020- AH919 Tungaloy indexable insert designed for precision turning applications, offering a wear-resistant PVD-coated carbide grade and compatibility with standard ISO toolholders

• PVD-coated carbide AH919 for wear resistance
• ISO rhombic design R2 for versatile turning
• 25° relief angle for secure cutting geometry
• Cylindrical hole with single-side countersink

Consistent cutting performance and extended tool life

The rhombic ISO geometry combined with the PVD-coated AH919 grade ensures a balance between a sharp cutting edge and high wear resistance. This composition promotes stable chip formation and reduces the risk of edge chipping during medium to heavy-duty turning operations. The insert’s construction supports longer intervals between indexings, which contributes to improved process economy and predictable tool life. Clear specification of the coating and grade allows planning of cutting strategies and cost calculations with confidence.

Geometry that adapts to common external and internal turning tasks

With an 80° cutting angle and a 25° relief angle, the insert delivers a secure seating in compatible holders and a robust cutting geometry for both external and internal turning. The R2 size and rhombic shape provide versatility for general-purpose turning, while the single-sided chipbreaker is suitable where a defined chip flow is required. Compatibility depends on holder form, clearance, tolerance class, fastening and insert thickness; matching these parameters minimises setup time and supports steady production runs.

Fast and secure mounting with standard hole design

The insert is supplied with a cylindrical hole and a single-side countersink (40°–60°), enabling reliable clamping in ISO-compliant holders and reducing the likelihood of movement under cutting forces. The central hole style simplifies replacement and inventory management where standard screws and clamping kits are used. Where process security is a priority, this mounting arrangement contributes to repeatable seating and consistent surface finish, lowering rework rates and increasing throughput.

Choosing the right grade and chipformer for the job

The AH919 grade is a PVD-coated carbide formulated for resistance to wear and edge breakage, particularly effective where a sharp edge and process stability are required simultaneously. Selecting the appropriate chipbreaker and grade combination for the workpiece material—such as steel or alloyed steel—will directly affect cutting forces and surface quality. For operations that prioritise high process stability and predictable tool life, this grade offers a reliable compromise between performance and durability.

Contact Metav Werkzeuge for tailored holder compatibility checks and application recommendations for the CFGTR2020- AH919 insert from Tungaloy.

Technical Data

• Manufacturer article number: 6801682
• SKU: 6801682-Tungaloy
• Manufacturer SKU: TUN6801682
• Model series: ISO-Drehwendeschneidplatten
• Designation: CFGTR2020- AH919 Tungaloy-Wendeplatte

Facts

• Cutting angle: 80°
• Relief angle: 25°
• Size designation: R2
• Countersink angle: 40°–60°

Special features

• Material: Hartmetall (carbide)
• Coating/grade: AH919, PVD-coated carbide
• Shape: rhombic
• Hole: with hole, cylindrical hole + single-side countersink
• Chipformer: single-sided

FAQ

What materials is this insert suitable for?
The insert in AH919 grade is designed for turning applications and is suitable for a broad range of steels and alloyed steels; the PVD-coated carbide composition provides wear resistance during general turning operations.

How does the hole and countersink affect clamping?
The cylindrical hole with single-side countersink (40°–60°) ensures secure and repeatable clamping in ISO-compliant toolholders, which improves seating accuracy and reduces the risk of insert movement under load.

Can this insert be used for both external and internal turning?
Yes, the rhombic R2 geometry and 80° cutting angle make the insert adaptable for both external and internal turning when paired with the appropriate holder and setup.

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.