Sandvik Coromant 5961302 Corothread 266 Grooving Insert

Product Description

The SANDVIK COROMANT 5961302 is a solid carbide grooving insert designed for threading and grooving operations on CNC lathes and turning centers. It features a TiCrAlN/TiN PVD coating applied over a solid carbide substrate, delivering wear resistance and thermal stability under continuous cutting loads. The insert has a 1.1 mm cutting width, a maximum depth of cut of 1.3 mm, and a neutral rake angle of 0 degrees. It belongs to the CoroThread 266 series, which is engineered for consistent thread profile accuracy and long tool life in precision turning applications. Licensed machinists and CNC operators install this insert as a replacement or stock unit during scheduled tooling changes.

This insert is suited for threading and grooving on small-diameter workpieces where tight depth control and narrow cutting widths are required. The CoroThread 266 series targets external threading and grooving on lathes in both production and job-shop environments. Typical materials machined include steel, stainless steel, and similar alloys where PVD-coated carbide inserts are standard practice. The right-hand orientation determines feed direction and must match the toolholder configuration before installation.

Key Features

• Solid carbide substrate with TiCrAlN/TiN PVD coating for extended wear life
• 1.1 mm cutting width with a maximum depth of cut of 1.3 mm
• Neutral rake angle (0 degrees) for balanced cutting forces
• 0.08 mm corner radius for precise groove geometry
• Right-hand insert orientation for standard lathe toolholder setups
• Multi-use tool designation — compatible with CoroThread 266 series toolholders

Compatibility

Designed for use with CoroThread 266 series toolholders. ISO code 254RG-16CC01-110 1135 and insert seat size 0.375 should be matched to the toolholder specification before installation. No additional compatible model numbers were specified in the product data.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or CNC tooling technician with the machine powered down and the spindle fully stopped. Use the correct torque wrench and clamping screw specified for the CoroThread 266 toolholder to seat the insert properly — do not overtighten or substitute fasteners. Verify right-hand orientation and insert seat size match the toolholder before engaging any cutting cycle. Follow the machine manufacturer and toolholder documentation for proper clamping procedure and insert indexing.