Sandvik Coromant 5757928 Threading Insert 0.50 Mm Pitch

Product Description

The SANDVIK COROMANT 5757928 is a solid carbide external threading insert designed for precision metric thread cutting in CNC turning and threading applications. Manufactured to the CoroThread 266 series standard, this insert features a 60-degree included angle, a 0.50 mm external pitch, and a PVD coating applied over a grade 1125 carbide substrate. The right-hand cutting geometry and A-style chipbreaker support consistent chip control during external thread turning. Installation and indexing are handled by qualified CNC machinists and toolroom technicians working on lathes and multi-axis turning centers.

This insert is intended for external metric threading operations on turned components in manufacturing and production environments. The CoroThread 266 series is designed for use in Sandvik Coromant 266-series threading toolholders. The 0.50 mm pitch suits fine-pitch metric fastener profiles and precision threaded features on small-diameter workpieces. It is appropriate for both high-volume production runs and precision job shop work where thread form accuracy and insert consistency are critical.

Key Features

• Solid carbide construction with PVD coating for wear resistance on grade 1125 substrate
• 0.50 mm external pitch for fine-pitch metric 60-degree thread profiles
• Right-hand cutting orientation for standard external threading passes
• A-style chipbreaker geometry for controlled chip evacuation
• Insert size 16 with a thickness of 3.97 mm (0.1563 inches) for secure toolholder seating
• CoroThread 266 series for use with compatible 266-series Sandvik Coromant toolholders

Compatibility

Designed for use in Sandvik Coromant CoroThread 266-series threading toolholders accepting size 16 inserts. ISO code 266RG16MM01A050M1125 identifies the exact toolholder and application pairing for this insert.

Installation Notes

Insert indexing and replacement must be performed with the machine spindle stopped and all motion axes at rest. Use the appropriate Torx or insert-clamping key specified for the CoroThread 266 toolholder to seat and secure the insert. Verify insert orientation matches the right-hand thread direction before resuming the cutting cycle. Follow the toolholder manufacturer guidelines and applicable shop safety procedures when handling carbide inserts, as edges are extremely sharp.