Sandvik Coromant 5758100 Threading Insert 5 Tpi 1/2 in Ic

Product Description

The SANDVIK COROMANT 5758100 is a solid carbide laydown threading insert designed for right-hand internal UN thread cutting at 5 threads per inch (TPI). Manufactured under the CoroThread 266 series, this insert carries a dual PVD coating of TiCrAlN and TiAlN for wear resistance and thermal stability in demanding threading operations. The manufacturer grade is 1125, indicating suitability for a range of steel and stainless steel workpiece materials. With a 1/2-inch inscribed circle and a thickness of 0.219 inches, the insert fits standard 266-series toolholders. Installation is performed by licensed machining professionals on CNC lathes and threading centers.

This insert is used in internal threading applications requiring UN thread form compliance with a 60-degree included angle. It is suited for single-point threading passes on bore diameters compatible with a 1/2-inch inscribed circle insert. The CoroThread 266 platform is typically found in production turning environments handling both through-bore and blind-bore threading. The chipbreaker style is A, which manages chip flow during internal threading. Applications include job shop and production machining where consistent UN thread form accuracy is required.

Key Features

• Solid carbide substrate with PVD-applied TiCrAlN and TiAlN dual coating for extended tool life
• Right-hand internal UN thread form with 60-degree included angle and 5 TPI
• 1/2-inch (12.70 mm) inscribed circle fits standard 266-series toolholders
• Manufacturer grade 1125 for broad material applicability in threading operations
• Chipbreaker style A supports controlled chip evacuation in internal bore threading
• Single tooth per side design for precise thread profile control

Compatibility

Designed for use with SANDVIK COROMANT CoroThread 266 series toolholders accepting a 266RL insert style with a 22 insert size code. Catalog reference number 266RL-22V401A0503E 1125.

Installation Notes

This insert is installed by qualified machinists or tooling technicians on CNC turning or threading equipment. Machine spindle must be stopped and all energy isolated before changing inserts. Use the correct torx or insert-clamping wrench specified for the CoroThread 266 toolholder to secure the insert at the proper clamping torque per the toolholder documentation. Verify thread form and pitch with a thread gauge after initial passes before running production quantities.