Iscar 5550285 CPMT21PF IC807 Turning Insert 1/4 in Ic

Product Description

The ISCAR 5550285 is a CPMT-style solid carbide turning insert with manufacturer grade IC807 and a TiAlN coating applied via PVD process. It features an 80-degree diamond shape (insert shape code C) with a positive rake geometry and a PF chip breaker, making it suitable for finishing and semi-finishing operations across a broad range of workpiece materials. The insert measures 6.30 mm (0.248 decimal inch) in length with a 1/4-inch inscribed circle and a 1/64-inch corner radius. The IC807 submicron carbide grade with PVD TiAlN coating provides a balance of hardness and coating adhesion for consistent tool life in turning applications.

This insert is rated for universal workpiece material compatibility, covering ISO material groups H, K, M, P, and S — spanning steels, stainless steels, cast irons, non-ferrous materials, and heat-resistant superalloys. It belongs to the ISCAR Isoturn series and is designed for screw-clamped toolholders using CPMT-style seating geometry. Typical applications include external turning, facing, and profiling on CNC lathes and turning centers in both production shop and job shop environments. The insert is sized for light to moderate depths of cut, with a maximum depth of cut of 2.50 mm (0.098 inch).

Key Features

• IC807 submicron solid carbide grade with PVD TiAlN coating for wear resistance across universal material groups
• 80-degree diamond insert shape with positive rake for reduced cutting forces in finishing applications
• PF chip breaker geometry designed for controlled chip evacuation in finishing and light semi-finishing passes
• 1/64-inch corner radius for tight-tolerance profiling and corner work
• Screw-clamped holding method compatible with CPMT-style toolholders
• ISO 13399 compliant — standardized tool data for CAM and tooling management systems

Compatibility

Designed for use in CPMT-style screw-clamped turning toolholders within the ISCAR Isoturn series. Compatible with ISO material groups H, K, M, P, and S as specified by the manufacturer.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the turret is indexed to a safe position before changing inserts. Seat the insert firmly against the toolholder pocket and torque the clamping screw to the toolholder manufacturer's specified value using the appropriate Torx or hex key. Inspect the seating pocket for chips or debris before securing the insert to avoid improper seating and premature edge failure.