Lyndex-nikken 800-022 R8 Collet 11/32 Inch Steel

Product Description

The LYNDEX-NIKKEN 800-022 is a steel R8 collet designed for use in milling machines equipped with an R8 spindle taper. It accepts a 11/32 inch tool shank and features a 7/16-20 drawbar thread for secure engagement with the machine spindle. With a Total Indicator Runout (TIR) of 0.0007 inches, this collet delivers the concentricity required for accurate milling, drilling, and light boring operations. The steel construction provides durability under repeated clamping cycles. Machinists and tool room technicians rely on R8 collets like this one for quick, repeatable toolholding in Bridgeport-style vertical knee mills and compatible machines.

This collet is suited for vertical milling machines using the R8 spindle interface, which is standard on a wide range of manual knee mills found in job shops, maintenance facilities, and machine tool training environments. It is used when mounting 11/32 inch round-shank cutting tools such as end mills, drill bits, or reamers directly in the spindle. The low TIR rating makes it appropriate for finishing operations and applications where tool runout directly affects surface quality or hole tolerance.

Key Features

• 11/32 inch bore accepts matching round-shank tooling directly
• R8 taper profile fits standard R8 spindle machines
• 7/16-20 drawbar thread for positive spindle retention
• 0.0007 inch TIR for precise concentricity and minimal runout
• Steel construction for durability under repeated use

Compatibility

Designed as an OEM-style R8 collet for use in milling machines with an R8 spindle taper and a 7/16-20 drawbar thread.

Installation Notes

R8 collets are installed and removed by machinists using the machine drawbar and a suitable wrench. Always power down and lock out the milling machine spindle before changing collets. Clean the spindle bore and collet taper surfaces before seating to ensure proper contact and accurate runout. Do not overtighten the drawbar, as this can damage the collet or spindle taper.