Accupro 784858 ER16 Collet 1/8 Inch

Product Description

The ACCUPRO 784858 is an ER16 collet designed to hold workpieces and cutting tools with a 0.125 inch (1/8 inch) shank diameter in ER16-compatible collet chucks. The minimum collet capacity is 0.109 inches, giving the collet a clamping range suitable for small-diameter end mills, drills, reamers, and similar tooling. It measures 1.9 inches in height and 1.2 inches in diameter, and weighs 0.05 pounds. Machinists and CNC operators install this collet into ER16 collet chucks on milling machines, lathes, and machining centers where accurate, repeatable tool holding at small diameters is required.

This collet is suited for light-duty to medium-duty machining operations on manual or CNC equipment. It is appropriate for shops running small-diameter tooling on benchtop mills, vertical machining centers, or Swiss-type lathes. The 1/8 inch size is commonly used when running small end mills, engraving cutters, or miniature drill bits. It ships as a single unit and is compatible with any ER16 collet chuck that accepts the standard ER16 collet form factor.

Key Features

• ER16 collet series for use in standard ER16 collet chucks
• 0.125 inch (1/8 inch) nominal collet size for small-diameter tooling
• Minimum collet capacity of 0.109 inches provides usable clamping range
• Compact dimensions: 1.9 inches height, 1.2 inches width and length
• Lightweight at 0.05 pounds for easy handling and chuck loading
• Sold individually — quantity of one per package

Compatibility

Designed as an OEM-style replacement or direct-fit collet for any ER16-standard collet chuck accepting a 0.125 inch nominal collet size.

Installation Notes

ER16 collets are installed and removed by machinists using an ER16 collet nut and a suitable collet chuck wrench. Always power down and lock out the spindle before changing collets. Seat the collet fully into the collet nut before threading the nut onto the chuck body to avoid cross-threading or collet damage. Inspect the collet bore and chuck taper for chips or debris before installation to maintain runout accuracy.