Sandvik Coromant 5782019 Threading Insert Un 12 Tpi

Product Description

The SANDVIK COROMANT 5782019 is a laydown threading insert designed for right-hand internal UN thread cutting operations. Part of the CoroThread 266 series, it is manufactured from solid carbide and finished with a PVD-applied TiCrAlN/TiN coating for wear resistance and tool life in demanding threading applications. The insert carries a 3/8 inch inscribed circle, a thickness of 0.1563 inches, and cuts at 12 threads per inch with a 60-degree included angle. It is intended for use by machinists and CNC tool setups in production threading on lathes and turning centers.

This insert is suited for internal threading applications on lathes and turning centers producing UN-standard threads. The right-hand cutting geometry and single tooth per side design make it appropriate for threading bores in ferrous and non-ferrous workpieces in both job shop and production environments. The 266RL designation indicates compatibility with CoroThread 266 system toolholders designed for laydown-style inserts. Installation and setup are performed by qualified machinists or CNC programmers.

Key Features

• Solid carbide substrate for rigidity and dimensional stability in threading operations
• PVD-applied TiCrAlN/TiN coating improves surface hardness and reduces built-up edge
• 12 TPI cutting geometry with 60-degree included angle for UN thread standard compliance
• Right-hand internal thread orientation for standard bore threading setups
• Single tooth per side design for controlled chip formation per pass
• CoroThread 266 series insert style for use with compatible laydown threading toolholders

Compatibility

Designed for use with CoroThread 266 series laydown threading toolholders accepting insert style 266 with a 16 size code. Compatible toolholders must accommodate a 0.1732 inch hole diameter and a 3/8 inch inscribed circle insert. Verify toolholder and insert size code compatibility before installation.

Installation Notes

Installation is performed by a qualified machinist or CNC toolroom technician. Ensure the machine spindle is fully stopped and all energy is locked out before changing inserts. Use the appropriate insert-seating torque tool specified by the toolholder manufacturer to secure the clamping screw. Do not force the insert into the pocket; confirm the pocket is free of chips and debris before seating.