Iscar 5901944 Threading Insert 60 Deg 48-16 Tpi IC908

Product Description

The ISCAR 5901944 is a solid carbide laydown threading insert designed for external partial profile threading on metalworking lathes and turning centers. Manufactured in the IC908 submicron carbide grade with a PVD-applied TiN/TiAlN coating, this insert handles a broad range of thread pitches from 48 to 16 TPI (0.50 to 1.50 mm pitch) in a single 60-degree profile geometry. The 3/8 inch (9.53 mm) inscribed circle and 0.143 inch thickness conform to the 16ER insert style standard. Right-hand cutting orientation makes it the standard choice for conventional external threading passes. Licensed machinists, CNC operators, and production turning shops install and index this insert during scheduled tooling maintenance.

This insert is suited for external threading operations on turning centers and manual lathes across a wide range of workpiece materials. The IC908 grade with H, K, M, N, P, and S material group ratings gives it universal applicability across steels, stainless steels, cast irons, non-ferrous alloys, high-temperature alloys, and hardened materials. It is commonly used in job shop and production environments where a single insert geometry must cover multiple thread pitches without a toolholder change. The B chipbreaker geometry supports controlled chip evacuation during threading passes.

Key Features

• IC908 submicron solid carbide grade with PVD TiN/TiAlN coating for extended tool life
• 60-degree external partial profile geometry covers 48-16 TPI (0.50-1.50 mm pitch range) in one insert
• Right-hand cutting orientation, 16ER insert style, fits standard 16ER toolholders
• Universal material compatibility: ISO material groups H, K, M, N, P, and S
• B chipbreaker for controlled chip flow during external threading
• Conforms to ISO 13399 tooling data standards for CAM and tool management integration

Compatibility

Designed as an OEM-style replacement insert for standard 16ER external threading toolholders. Compatible with toolholders accepting the 16ER laydown insert style with a 3/8 inch inscribed circle seating geometry.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist or CNC tooling technician with the machine in a full stop and lockout-tagout procedures applied. Use the appropriate torque wrench and insert clamp screw driver specified by the toolholder manufacturer when seating the insert. Inspect the insert pocket and clamping surfaces for wear or debris before seating a new insert. Do not use a damaged or chipped insert, as this can compromise thread form accuracy and create a hazard during cutting.