Value Collection 204-4032 ER40 Collet 0.5 Inch

Product Description

The VALUE COLLECTION 204-4032 is an ER40 series collet sized at 0.5 inches (1/2 inch) with a total indicator runout (TIR) of 0.0005 inches. ER collets are precision workholding devices used in CNC machining centers, manual milling machines, and lathes to secure round cutting tools and workpieces within a collet chuck. The tight 0.0005-inch TIR rating ensures minimal tool runout, which directly supports accurate cuts, extended tool life, and consistent surface finishes. This collet weighs 0.5 pounds and is a single-piece unit packaged individually. It is installed and serviced by machinists and toolroom technicians.

This ER40 collet is suited for use in any machine tool equipped with an ER40-compatible collet chuck. The ER40 system is widely used in production and job-shop environments for milling, drilling, reaming, and tapping operations. The 0.5-inch bore accepts standard 1/2-inch shank cutting tools including end mills, drill bits, and reamers. It is appropriate for both light-duty finishing passes and heavier material removal operations within the torque limits of the host collet chuck.

Key Features

• ER40 collet series for use with ER40-compatible collet chucks
• 0.5-inch (1/2-inch) bore diameter accepts standard 1/2-inch shank tooling
• 0.0005-inch TIR for precise tool concentricity and reduced runout
• Single-piece unit sold individually (package quantity of 1)
• Weighs 0.5 pounds for easy handling and tool change efficiency

Compatibility

Designed for use with any machine tool spindle or toolholder equipped with an ER40-compatible collet chuck. Accepts 1/2-inch shank cutting tools and workpieces.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before installing or removing the collet, power down the machine and ensure the spindle has come to a complete stop. Insert the collet into the ER40 collet nut before threading the nut onto the chuck body, then tighten to the chuck manufacturer's specified torque using an appropriate collet wrench. Inspect the collet bore and seating surfaces for chips or contamination prior to each use, as debris will degrade TIR performance.