Accupro 784899 ER20 Er Collet 0.094 Inch 3/32

Product Description

The ACCUPRO 784899 is an ER20 series ER collet designed for secure tool clamping in CNC machining and manual milling applications. It accepts tooling with a 0.094 inch (3/32 inch) shank diameter and fits standard ER20 collet chucks. ER collets provide a concentric clamping force around the tool shank, minimizing runout and maintaining consistent cutting performance. This collet measures 1.9 inches in height and 1.2 inches in diameter and weighs approximately 0.05 pounds. It is a single-piece component suited for production shops and tool rooms running ER20-compatible spindle toolholding systems.

ER20 collets are widely used in CNC machining centers, CNC routers, manual knee mills, and drill presses equipped with ER20 collet chucks or toolholding arbors. This 0.094 inch collet is appropriate for smaller-diameter end mills, drills, reamers, and similar cutting tools with 3/32 inch shanks. It suits both light-production and precision machining environments where accurate tool clamping and repeatable runout are required.

Key Features

• ER20 collet series for use with standard ER20 collet chucks
• 0.094 inch (3/32 inch) bore accepts matching shank-diameter cutting tools
• Concentric clamping design minimizes tool runout
• Compact form factor: 1.9 inches tall, 1.2 inches in diameter
• Lightweight at 0.05 pounds for minimal spindle load contribution

Compatibility

Designed for use with standard ER20 collet chucks and ER20-compatible toolholding systems accepting 0.094 inch (3/32 inch) shank tooling.

Installation Notes

Installation is performed by machinists or toolroom personnel. Before changing collets, power down the machine and confirm the spindle has come to a full stop. Seat the collet into the ER20 nut before threading onto the chuck body, and tighten with the appropriate ER collet wrench to the chuck manufacturer's specified procedure. Inspect the collet seating surface and chuck bore for chips or debris before assembly to maintain runout accuracy.