Parlec ER40-0500 ER40 Collet 0.5 Inch

Product Description

The PARLEC ER40-0500 is an ER40-series precision collet designed to hold round workpieces and cutting tools with a nominal clamping diameter of 0.5 inches (1/2 inch). Built for use in CNC machining centers, milling machines, lathes, and drilling applications, this collet fits standard ER40 collet chucks and tool holders. The overall length measures 1.811 inches, with an overall diameter of 1.614 inches. Minimum collet capacity is 0.461 inches, providing a clamping range suited to tooling and stock near the nominal size. Machinists and CNC setup technicians install this collet as part of a toolholding system where accurate, repeatable tool runout is required.

This collet is applicable in general machining environments including job shops, production facilities, and maintenance shops running CNC or manual spindle equipment. It is suited for holding end mills, drill bits, reamers, and round bar stock within its clamping range. The ER40 series is one of the most widely used collet standards in machine tool applications, making this collet a common fitment across a broad range of compatible ER40 chucks and tool holders.

Key Features

• ER40 collet series - compatible with standard ER40 collet chucks and holders
• Nominal clamping diameter of 0.5 inches (1/2 inch)
• Minimum collet capacity of 0.461 inches for close-range clamping
• Overall length of 1.811 inches and overall diameter of 1.614 inches
• Suitable for holding end mills, drills, reamers, and round stock within capacity range

Compatibility

Designed for use with standard ER40 collet chucks and tool holders accepting the ER40 collet series.

Installation Notes

Installation is performed by a machinist or CNC technician. Before changing collets, ensure the spindle is fully stopped and the machine is in a safe, locked-out state per shop safety procedures. Seat the collet correctly into the ER40 nut before threading onto the chuck body - inserting the collet after the nut is threaded can cause damage to the collet seat. Inspect the collet bore and chuck taper for chips or debris before clamping.