Sandvik Coromant 8020981 Turning Insert Vbmt 11 02 08-UF 4415

Product Description

The SANDVIK COROMANT 8020981 is a VBMT-series indexable turning insert designed for metal cutting on CNC lathes and turning centers. It carries ISO designation VBMT 11 02 08-UF 4415 and features a 35-degree diamond shape with a neutral hand orientation. The insert is manufactured from carbide substrate and coated via CVD process with a multilayer TiCN, Al2O3, and TiN stack. Grade 4415 is optimized for cutting steel. The 0.0313-inch corner radius suits general finishing and semi-finishing passes. Holding is compatible with both clamp and screw-style toolholders. Machinists and CNC operators in production shops install this insert for consistent tool life on steel turning operations.

This insert is intended for turning steel workpieces, with secondary suitability indicated by material code K. It is part of the VBMT-UF chip breaker series, which is configured for controlled chip formation in finishing and light semi-finishing cuts. Typical applications include shaft turning, facing, and profiling on horizontal and slant-bed CNC lathes. The UF chip breaker geometry supports lower cutting forces, making it appropriate for tighter tolerance workpieces and setups where vibration must be minimized. This insert is sold individually but requires a minimum order quantity of 10 units.

Key Features

• 35-degree diamond insert shape (shape code V) for excellent access in profiling and contour turning
• CVD multilayer coating: TiCN, Al2O3, and TiN for wear resistance and thermal protection on steel
• Grade 4415 carbide substrate optimized for primary steel cutting applications
• 0.0313-inch corner radius for finishing and semi-finishing surface quality
• Neutral hand orientation fits both left-hand and right-hand toolholder configurations
• Compatible with clamp and screw insert holding methods for flexible toolholder use
• UF chip breaker geometry reduces cutting forces for improved dimensional accuracy

Compatibility

Designed for use in VBMT-style indexable toolholders that accept clamp or screw holding methods with a B clearance angle and M tolerance class. Primary workpiece material is steel; secondary workpiece material code K indicates additional suitability for cast materials. Verify toolholder pocket specifications against ISO code VBMT 11 02 08 before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Before changing inserts, power down the machine and follow lockout/tagout procedures per facility safety protocols. Seat the insert fully in the pocket and torque the clamping screw or lever according to the toolholder manufacturer's specifications — do not use the insert body to force alignment. Inspect the insert seat and shim for chips or debris before indexing to a fresh edge.