Sumitomo U102715 ER11 Collet 0.2031 Inch

Product Description

The SUMITOMO U102715 is an ER11 series collet designed for precision CNC machining and toolholding applications. It accepts a collet size of 0.2031 inches (decimal) with a minimum collet capacity of 0.1875 inches, making it suitable for holding small-diameter cutting tools, drills, and end mills. The total indicator runout (TIR) is rated at 0.0005 inches, providing the close concentricity tolerances required for accurate material removal. Machinists and CNC operators install this collet into compatible ER11 collet chucks mounted on machining centers, milling machines, and CNC routers.

This collet is used in precision machining environments where tight runout control is critical. It fits standard ER11 collet chuck systems and is appropriate for light-duty milling, drilling, engraving, and high-speed spindle work. The small form factor and tight TIR specification make it well suited for instrument machining, die and mold work, and any application requiring repeatable tool positioning in a compact spindle format.

Key Features

• ER11 collet series for use with standard ER11 collet chucks
• 0.2031 inch decimal collet size with a minimum capacity of 0.1875 inches
• 0.0005 inch TIR for high concentricity and accurate tool positioning
• Compact dimensions: 0.71 inches length, 0.47 inches width, 0.47 inches height
• Lightweight at 0.1 pounds, suitable for high-speed spindle applications

Compatibility

Designed as a direct-fit collet for ER11 series collet chuck systems used in CNC machining centers, milling machines, and high-speed routers that accept the ER11 collet standard.

Installation Notes

Installation is performed by qualified machinists or CNC technicians. Before installing or removing the collet, power down the spindle and confirm it has come to a complete stop. Insert the collet into the ER11 chuck nut before threading onto the spindle to prevent collet damage. Inspect the collet bore and chuck taper for debris or wear before each installation to maintain rated TIR performance.