Sandvik Coromant 5965635 Threading Insert 16 Tpi

Product Description

The SANDVIK COROMANT 5965635 is a laydown threading insert designed for right-hand internal UN thread cutting. Built from solid carbide with a PVD-applied TiCrAlN/TiAlN dual-layer coating, it delivers consistent thread form and wear resistance in precision threading operations. The insert carries a 16 threads-per-inch pitch, a 3/8-inch inscribed circle, and a 60-degree included angle. It is part of the CoroThread 266 series and uses the 266RL-16UN02A160M 1125 catalog designation. Machinists and CNC turning specialists install this insert into compatible CoroThread 266 toolholders for high-repeatability threading on internal bores.

This insert is suited for internal UN thread production in precision machining environments, including job shops, aerospace component production, and general-purpose CNC turning. The A-style chipbreaker geometry supports controlled chip formation during threading passes. With two teeth per side and a solid carbide substrate, the insert handles a range of workpiece materials where a stable, sharp threading edge is required. It is sold individually with a minimum order quantity of 10 units.

Key Features

• Solid carbide substrate for rigidity and edge stability during threading
• PVD TiCrAlN/TiAlN dual-layer coating for wear and heat resistance
• 16 TPI, right-hand internal UN thread form with 60-degree included angle
• A-style chipbreaker for controlled chip evacuation
• Two teeth per side for efficient thread forming per pass
• Part of the CoroThread 266 series for use with matched 266-series toolholders

Compatibility

Designed for use with SANDVIK COROMANT CoroThread 266 series toolholders that accept the 266RL insert style with a 16-size insert code. Consult the CoroThread 266 toolholder catalog to confirm holder-to-insert fit before installation.

Installation Notes

This insert is installed and replaced by a qualified machinist or CNC turning technician. Power down and lock out the machine spindle before changing inserts. Use the correct torx or insert-clamping key specified for the CoroThread 266 toolholder to seat the insert properly — do not overtighten with unspecified tools. Confirm insert seating and thread-form alignment with a test pass before running full production.