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The VALUE COLLECTION 204-1102 is an ER11 series collet sized at 0.0312 inches (1/32 inch) for use in CNC machining centers, milling machines, and high-speed spindles that accept the ER11 collet standard. This collet holds a total indicator runout (TIR) of 0.0005 inches, providing the precision concentricity required for small-diameter tooling such as end mills, drills, and reamers. Machinists and toolroom technicians install this collet when working with fine-detail cuts where tool runout directly affects surface finish and dimensional accuracy. It is a single-piece item suited for direct replacement or initial tooling setups.
This collet is intended for use in ER11-compatible tool holders and spindle chucks found on benchtop CNC mills, precision engraving machines, and small-footprint machining centers. The ER11 series is a widely adopted collet standard, making this size appropriate for shops running small-diameter cutting tools in light to moderate material removal applications across metalworking, woodworking, and composite fabrication environments.
Designed as a direct-fit collet for ER11-standard tool holders and collet chucks. Fits any spindle or chuck manufactured to the ER11 collet specification.
ER collets are installed and removed by a qualified machinist or toolroom technician using the appropriate ER11 collet nut and spanner wrench. Always de-energize and lock out the machine spindle before changing collets. Inspect the collet bore and tool holder taper for chips or debris before seating the collet to avoid false runout readings. Do not exceed the collet's stated clamping range when selecting tool shank diameters.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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