Iscar 5504980 Boring Insert WBGT520 IC908 Solid Carbide

Product Description

The ISCAR 5504980 is a solid carbide boring insert in the WBGT520 style, designed for precision internal turning and boring operations on CNC lathes and machining centers. It carries the IC908 manufacturer grade with a PVD-applied TiAlN coating, providing wear resistance and thermal stability across a broad range of workpiece materials. The insert features an 80-degree trigon shape with a positive rake geometry and a 5-degree relief angle. The corner radius measures 0.20 mm (0.0080 inches), and the inscribed circle diameter is 3.97 mm (0.1563 inches). Installation is via screw-holding method, and cutting direction is left-hand. This insert is typically installed by machinists and CNC tool-setup technicians in production turning environments.

The 5504980 belongs to ISCAR's Isoturn series and is rated for universal primary workpiece material compatibility, covering ISO material groups H, K, M, P, and S. This makes it suitable for boring ferrous metals, stainless steels, cast irons, non-ferrous alloys, and high-temperature alloys in both light finishing and moderate semi-finishing passes. It is a direct replacement insert for boring bars and boring heads configured for the WBGT screw-on insert style with left-hand cutting geometry. Typical applications include small-bore internal turning where tight tolerances and consistent surface finish are required.

Key Features

• IC908 grade with PVD TiAlN coating for high thermal resistance and extended tool life
• 80-degree trigon insert shape with positive rake for lower cutting forces
• 5-degree relief angle reduces rubbing in close-tolerance bore work
• 0.20 mm corner radius (0.0080 inches) suited to fine finishing and semi-finishing passes
• Screw-holding method ensures rigid, repeatable seating in compatible boring bar pockets
• Left-hand cutting direction for standard internal boring bar orientations
• Complies with ISO 13399 tooling data standards for CAM and tool management integration

Compatibility

Designed as a screw-on replacement boring insert for WBGT-style insert pockets in boring bars and modular boring heads configured for left-hand, 80-degree trigon geometry. Compatible with ISO material groups H, K, M, P, and S as stated by the manufacturer. Refer to your boring bar documentation to confirm pocket style and screw size before ordering.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the machine in a locked-out, de-energized state per applicable lockout/tagout procedures. Ensure the insert pocket and seating surfaces are clean and free of chips or debris before seating the insert. Use the manufacturer-recommended torque driver for the clamping screw — do not overtighten, as this can fracture the carbide substrate. Verify cutting direction and tool offset in the CNC control before resuming operation.