Lyndex-nikken 820-014 R8 Collet 14mm Steel

Product Description

The LYNDEX-NIKKEN 820-014 is a 14mm R8 collet machined from steel for use in Bridgeport-style vertical milling machines and compatible R8-spindle equipment. It accepts a 7/16-20 drawbar thread and holds tooling at a maximum total indicator runout (TIR) of 0.0011 inches, providing the concentricity required for accurate milling, drilling, and reaming operations. The collet weighs 0.3 pounds and is suited for production and jobshop environments where repeatable tool holding is critical. Machinists and tool room technicians are the primary installers.

This collet is designed for use in knee mills, bed mills, and other machine tools equipped with an R8 taper spindle. It is a direct-fit solution for shops running standard R8 tooling systems where 14mm collet capacity is needed. Typical applications include holding end mills, drill chucks, boring heads, and other shanked tooling in light-to-medium milling operations on manual or CNC-converted R8 machines.

Key Features

• 14mm collet bore accepts 14mm shank tooling for precise grip
• R8 taper profile fits standard R8 spindle machines
• 0.0011 inch maximum TIR for consistent tool concentricity
• 7/16-20 drawbar thread for secure spindle retention
• Steel construction for durability under repeated tool changes

Compatibility

Designed as an OEM-style replacement or upgrade collet for machine tools equipped with an R8 taper spindle and a 7/16-20 drawbar thread.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians familiar with R8 spindle tooling systems. Power down and lock out the machine before inserting or removing any collet. Thread the drawbar fully into the collet and torque by hand before final tightening with a wrench while holding the spindle brake. Inspect collet bore and taper surfaces for chips or wear before each use to maintain TIR performance.