Value Collection 204-1114 ER11 Collet 0.2185 Inch

Product Description

The VALUE COLLECTION 204-1114 is an ER11 series collet sized at 0.2185 inches (7/32 inch) for use in ER11-compatible collet chucks on CNC machining centers, milling machines, and high-speed spindles. The collet holds round-shank tooling to a Total Indicator Runout (TIR) of 0.0005 inches, delivering the concentricity needed for precision drilling, reaming, and light milling operations. At 0.01 pounds, it is a compact, single-piece workholding component suited for machinists and tool-room technicians working with small-diameter tooling in both production and prototype environments.

This collet is intended for light-duty to medium-duty machining applications where precise tool holding is required. The ER11 collet series is one of the most widely used standards in small-spindle CNC routing, engraving, and precision drilling. It is appropriate for use in both manual and CNC-controlled machines that accept the ER11 collet chuck format. Typical users include machinists, tool-and-die makers, and CNC operators working with small-diameter end mills, drills, or reamers in the 7/32 inch shank range.

Key Features

• ER11 series collet standard for broad chuck compatibility
• 0.2185 inch (7/32 inch) bore size for consistent small-diameter tool holding
• 0.0005 inch TIR for high concentricity in precision machining operations
• Lightweight single-piece construction at 0.01 pounds
• Sold individually — quantity of one per package

Compatibility

Designed for use in ER11-compatible collet chucks. Verify that the host chuck accepts the ER11 collet standard before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians familiar with collet-chuck systems. Power down and lock out the spindle before inserting or removing collets. Use the correct ER11 collet nut and tighten with a proper spanner wrench to the chuck manufacturer's specified torque range — do not over-tighten, as this can deform the collet bore and degrade runout performance. Inspect the collet bore and chuck taper for chips or debris before each use.