Sandvik Coromant 5910845 Grooving Insert Corothread 266

Product Description

The SANDVIK COROMANT 5910845 is a solid carbide grooving insert engineered for precision threading and grooving operations on CNC lathes and turning centers. Part of the CoroThread 266 series, this left-hand insert carries a TiCrAlN/TiN PVD coating that resists heat and wear during interrupted and continuous cuts. It delivers a cutting width of 3.15 mm (0.124 inches) and a maximum depth of cut of 2.2 mm (0.0866 inches), with a neutral rake angle and a corner radius of 0.15 mm (0.0059 inches). Machinists and CNC operators working in production threading and grooving applications install this insert as a direct replacement in compatible CoroThread 266 toolholders.

This insert is suited for threading and external grooving on small-diameter workpieces in both production and jobshop environments. The 0.5 insert seat size and ISO code 254LG-22CC01-315 1135 identify its precise fit within the CoroThread 266 system. Manufacturer grade 1135 with PVD coating makes it appropriate for a range of workpiece materials where a balance of edge toughness and surface finish is required. It is designated as a multi-use tool, supporting both grooving and threading passes depending on the toolholder configuration.

Key Features

• Solid carbide substrate with TiCrAlN/TiN PVD coating for extended tool life and thermal resistance
• Left-hand cutting orientation with neutral rake angle for controlled chip formation
• Cutting width of 3.15 mm (0.124 inches) with maximum depth of cut of 2.2 mm (0.0866 inches)
• Corner radius of 0.15 mm (0.0059 inches) for fine-detail grooving and thread profiles
• C chip breaker geometry for reliable chip control in grooving and threading operations
• Multi-use designation supports both grooving and threading in CoroThread 266 toolholders

Compatibility

Designed for use with SANDVIK COROMANT CoroThread 266 series toolholders accepting 0.5 insert seat size inserts. ISO code 254LG-22CC01-315 1135 and catalog number 254LG-22CC01-315 1135 identify exact fitment within this system.

Installation Notes

Installation is performed by a qualified CNC machinist or toolroom technician. Power down and zero the machine spindle before seating or replacing inserts. Use the correct insert clamp and torx key specified for the CoroThread 266 toolholder to achieve proper seating without overtightening. Inspect the insert pocket for wear or debris before installing a new insert to ensure accurate positioning and repeatable depth of cut.