Sandvik Coromant 5757905 Threading Insert 3.00mm Metric

Product Description

The SANDVIK COROMANT 5757905 is a laydown threading insert from the CoroThread 266 series, designed for right-hand external threading operations on metric 60-degree thread forms. Manufactured from solid carbide with a PVD-applied TiCrAlN/TiAlN dual-layer coating, this insert delivers wear resistance and thermal stability in demanding turning applications. The insert carries a 3.00mm pitch, a 3/8-inch inscribed circle (9.53mm), and a thickness of 5/32 inch (0.1563 inches). It is installed by machinists and CNC lathe operators performing precision external thread cutting on metal workpieces.

This insert is suited for external metric threading on CNC lathes and turning centers in production and job-shop environments. The CoroThread 266 insert style with chipbreaker geometry A is appropriate for consistent chip control during threading passes. It fits standard CoroThread 266 toolholders designed for 16-size inserts. Applications span general metalworking, automotive components, and industrial fastener production where repeatable metric thread quality is required.

Key Features

• Solid carbide substrate with PVD TiCrAlN/TiAlN coating for extended tool life
• 3.00mm pitch, metric 60-degree thread form for standard metric external threads
• 3/8-inch (9.53mm) inscribed circle, insert size code 16
• Chipbreaker geometry A for controlled chip evacuation during threading
• Right-hand cutting orientation for conventional external threading setups
• Manufacturer grade 1125 for balanced hardness and toughness in steel and alloy applications

Compatibility

Designed for use with CoroThread 266 series toolholders accepting size 16 laydown threading inserts. Refer to the SANDVIK COROMANT CoroThread 266 toolholder selection guide to confirm holder compatibility before installation.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before seating or removing the insert. Secure the insert with the appropriate torque wrench to the toolholder manufacturer specification listed in the holder documentation. Inspect the seating pocket for chips or debris before installation to prevent insert rocking and premature edge failure.