Lyndex-nikken 160-072 Round Collet 1-1/8 Inch

Product Description

The LYNDEX-NIKKEN 160-072 is a round collet designed for precision workholding in CNC machining and toolholding applications. Built to accept a 1-1/8 inch bore size, this collet features a 1-11/16-20 internal thread and an M47.5 x 1.75 external thread for secure engagement with compatible collet chucks and closers. The overall length of 4.31 inches and a total indicator runout (TIR) of 0.0011 inches make it suitable for applications where concentricity and repeatability are critical. Machinists and toolroom technicians rely on this type of collet for consistent grip force and minimal runout across turning and milling setups.

This collet is used in machine shop environments where precision collet chucks require a round-style collet for gripping cylindrical workpieces or tooling shanks. It is suited for both production CNC turning centers and manual lathes that use compatible threaded collet systems. The M47.5 x 1.75 external thread and 1-11/16-20 internal thread designations indicate specific chuck compatibility, so verification against the collet chuck specifications is recommended before installation. Typical users include CNC machinists, toolroom technicians, and precision machine operators.

Key Features

• 1-1/8 inch bore size for gripping cylindrical workpieces or tooling shanks
• 0.0011 inch TIR for high concentricity and repeatable runout performance
• 1-11/16-20 internal thread for engagement with compatible collet closers
• M47.5 x 1.75 external thread for mounting in compatible collet chucks
• 4.31 inch overall length accommodates standard collet chuck depth requirements

Compatibility

Designed for use with collet chucks and collet closers that accept an M47.5 x 1.75 external thread and a 1-11/16-20 internal thread interface. Verify chuck and closer thread specifications before installation to confirm fitment.

Installation Notes

Installation of this collet should be performed by a qualified machinist or toolroom technician familiar with collet chuck systems. Power down and lock out the machine spindle before inserting or removing the collet. Ensure all mating threads are clean and free of chips or debris before threading the collet into the chuck body. Do not overtighten the collet closer; follow the collet chuck manufacturer torque guidelines.