Sandvik Coromant 5742043 Threading Insert 12-24 Tpi Solid Carbide

Product Description

The SANDVIK COROMANT 5742043 is a solid carbide laydown threading insert designed for internal 60-degree V thread cutting operations. Carrying manufacturer catalog designation R166.0L-11VM01C001 1020, this insert belongs to the T-Max U-Lock series and features a PVD-applied TiN coating for improved wear resistance and surface finish. It covers a thread pitch range of 12 to 24 TPI (1.00 to 2.00 mm pitch), making it suitable for a broad range of internal thread profiles encountered in production and job-shop turning. The insert measures 0.25 inches inscribed circle diameter and 0.125 inches thick, with a right-hand cutting orientation. Machinists and CNC lathe operators working in metalworking, aerospace, automotive, and general manufacturing environments are the primary users.

This insert is applied in internal threading operations on CNC turning centers and manual lathes where a 60-degree V thread form is required. Its 12 to 24 TPI range covers common unified thread standards including UNC and UNF profiles. The T-Max U-Lock series is engineered for secure insert clamping in compatible toolholders, reducing micro-movement during interrupted or continuous threading passes. Typical applications include threading bores in steel, stainless steel, and other machinable alloys in both high-production and prototype environments.

Key Features

• Solid carbide substrate for rigidity and thermal stability in threading operations
• PVD TiN coating reduces friction and extends tool life on ferrous materials
• Covers 12 to 24 TPI (1.00 to 2.00 mm pitch) for versatile internal threading
• Right-hand 60-degree V thread form compatible with unified thread standards
• Insert Size Code 11 with 0.25 inch inscribed circle and 0.125 inch thickness
• Chipbreaker style A for controlled chip evacuation in internal bore threading
• T-Max U-Lock series design for positive seat engagement in compatible holders

Compatibility

Designed for use in SANDVIK COROMANT T-Max U-Lock series threading toolholders compatible with Series 166 insert geometry and Insert Size Code 11. Confirm toolholder compatibility with the manufacturer catalog designation R166.0L-11VM01C001 before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing the insert. Ensure the insert pocket and clamping surfaces are clean and free of chips before seating the insert to achieve proper locating contact. Follow the toolholder manufacturer torque and clamping sequence guidelines for the T-Max U-Lock system; do not substitute non-OEM clamping screws.