Iscar 5902783 Threading Insert 16IRBG60 IC908 14-8 Tpi

Product Description

The ISCAR 5902783 is a laydown threading insert in the ISCARTHREAD series, designed for right-hand internal partial-profile 60-degree threading operations. It carries the IC908 manufacturer grade with a PVD-applied TiAlN coating, delivering wear resistance and thermal stability across a broad range of workpiece materials. The insert features a 3/8 inch (0.3750 inch) inscribed circle, a thickness of 0.1430 inches, and covers a threads-per-inch range of 14 to 8 TPI (1.75 mm to 3.00 mm pitch). It is intended for use by machinists and CNC tooling professionals in metal-cutting applications where consistent thread form and insert longevity are required.

This insert is suited for internal threading on CNC lathes and turning centers. The IC908 grade with PVD TiAlN coating is rated for universal primary workpiece materials, covering ISO material groups H, K, M, N, P, and S. That range includes steel, stainless steel, cast iron, non-ferrous alloys, high-temperature alloys, and hardened materials. The chipbreaker designation is B, and the insert style code is 16IRB, consistent with standard ISCARTHREAD toolholder compatibility. This makes it a practical choice for shops running varied material jobs without frequent grade changes.

Key Features

• IC908 grade with PVD TiAlN coating for extended tool life across diverse workpiece materials
• Right-hand internal partial-profile 60-degree thread form covering 14-8 TPI (1.75-3.00 mm pitch)
• 3/8 inch inscribed circle (0.3750 inch) for accurate toolholder seating and repeatability
• Chipbreaker style B for controlled chip evacuation during internal threading passes
• Compatible with ISO material groups H, K, M, N, P, and S for universal application
• Conforms to ISO 13399 insert identification standards

Compatibility

Designed for use in ISCARTHREAD series toolholders accepting the 16IRB insert style with a 3/8 inch inscribed circle. Confirm toolholder designation against the 16IRB style code before installation. No additional specific compatible model numbers were provided in the product data.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the machine is in a safe, locked-out state before handling or replacing inserts. Use the correct torx or clamping key specified by the toolholder manufacturer to achieve proper clamping torque without over-stressing the insert seat. Inspect the insert pocket and clamping hardware for wear or debris before seating a new insert.