Sandvik Coromant 5857622 Threading Insert 12-24 Tpi Solid Carbide

Product Description

The SANDVIK COROMANT 5857622 is a laydown threading insert designed for internal thread cutting operations in precision machining environments. Part of the CoroThread 266 series, this solid carbide insert carries a TiCrAlN/TiN PVD coating that improves wear resistance and tool life across a range of cutting conditions. It is configured for right-hand internal 60-degree V threads at 12-24 TPI, with an inscribed circle of 3/8 inches and a thickness of 5/32 inches. The manufacturer grade is 1135. This insert is specified by machinists and tooling technicians running CNC lathes or manual threading operations requiring consistent, tight-tolerance internal threads.

This insert is suited for internal threading applications across a broad range of materials where the CoroThread 266 toolholder system is in use. The F chipbreaker geometry is optimized for controlled chip evacuation during threading passes. The 60-degree included angle covers standard unified and metric thread profiles within the 12-24 TPI range, making this insert applicable to general-purpose threading in job shop, production, and maintenance machining settings. The manufacturer catalog number for this insert is 266RL-16VM01F001E 1135.

Key Features

• Solid carbide substrate with TiCrAlN/TiN PVD coating for extended wear resistance
• Right-hand internal 60-degree V thread configuration, 12-24 TPI
• F chipbreaker geometry for controlled chip formation during threading
• Part of the CoroThread 266 series for use with compatible 266-series toolholders
• Corner radius of 0.0024 inches (0.06 mm) for precise thread root profile
• Single tooth per side design for consistent thread form

Compatibility

Designed for use with SANDVIK COROMANT CoroThread 266 series toolholders accepting 16-size laydown threading inserts. Confirm holder bore and clamping requirements before installation.

Installation Notes

This insert is installed and replaced by qualified machinists or tooling technicians familiar with indexable insert threading systems. Before changing inserts, power down and lock out the machine spindle per standard lockout/tagout procedures. Use the appropriate torx or clamping key to seat and secure the insert fully in the pocket - do not overtighten or force. Verify thread pitch and hand configuration against the workpiece drawing before commencing the threading cycle.