Lyndex-nikken 300-032 Round Collet 1/2 Inch 1.988-20 Thread

Product Description

The LYNDEX-NIKKEN 300-032 is a round collet designed for precision workholding in CNC machining and toolholding applications. It accepts a 1/2 inch round shank and features a 1.988 inch-20 external thread for secure, repeatable engagement in compatible collet chucks and holders. With an overall length of 3-3/4 inches and a total indicator runout (TIR) of 0.0011 inches, this collet delivers the dimensional accuracy required for close-tolerance turning, milling, and secondary operations. It is installed and serviced by machinists and toolroom technicians in production and job-shop environments.

This collet is suited for use in manual and CNC lathe collet chucks, rotary collet closers, and compatible toolholding systems that accept the 1.988 inch-20 external thread standard. Typical applications include bar-feeding operations, part-gripping for turning, and precision fixture workholding where runout control directly affects finished-part quality. It is appropriate for both light production and high-mix low-volume machining environments.

Key Features

• 1/2 inch bore size for round shank workpieces and tooling
• 1.988 inch-20 external thread for engagement with compatible collet chucks
• 3-3/4 inch overall length provides adequate reach for standard collet chuck installations
• 0.0011 inch TIR supports close-tolerance machining requirements
• Round collet geometry ensures uniform gripping force around the shank circumference

Compatibility

Designed for use in collet chucks and toolholding systems that accept a 1.988 inch-20 external thread round collet with a 1/2 inch bore. Verify thread engagement and closer compatibility with the specific chuck or collet block before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before installing or removing a collet, ensure the machine spindle is fully stopped and all energy sources are locked out per applicable safety procedures. Clean the collet seat and chuck bore thoroughly before seating the collet to prevent contamination from affecting runout. Do not exceed the collet's rated bore capacity or use damaged collets, as improper fit will degrade TIR performance and risk workpiece ejection.