Parlec 5UMER32-0375 ER32 Collet 0.375 Inches

Product Description

The PARLEC 5UMER32-0375 is an ER32 series collet designed for precision workholding in CNC machining and milling applications. Sized at 0.375 inches (3/8 inch), it holds shank tooling with a minimum collet capacity of 0.336 inches and an overall length of 1.574 inches. Total Indicator Runout (TIR) is rated at 0.0002 inches, making this collet suitable for close-tolerance work where concentricity directly affects surface finish and tool life. Machinists and CNC setup techs install this collet into compatible ER32 collet chucks or collet nuts as part of standard toolholding assemblies.

This collet fits ER32 collet chuck bodies and is used in vertical and horizontal machining centers, CNC mills, and drill presses equipped with ER32 toolholding systems. The 3/8-inch size is a common diameter for end mills, drills, and reamers, making this a frequently used collet size in general-purpose and production machining environments across job shops and manufacturing facilities.

Key Features

• ER32 collet series for broad compatibility with standard ER32 chuck bodies
• 0.375-inch (3/8-inch) clamping diameter with 0.336-inch minimum collet capacity
• 0.0002-inch TIR for high-concentricity toolholding
• Overall length of 1.574 inches suits standard ER32 chuck depth requirements
• Lightweight at 0.38 pounds for easy handling during tool changes

Compatibility

Designed for use with ER32 collet chucks and collet nuts. Accepts round shank tooling from 0.336 inches up to 0.375 inches in diameter.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Before installing or removing collets, ensure the machine spindle is fully stopped and locked out per shop safety procedures. Seat the collet fully into the collet nut before threading onto the chuck body to prevent collet damage. Inspect collet bore and chuck taper for chips or debris before assembly, as contamination directly impacts TIR performance.