Parlec ER32-0187 ER32 Collet 0.187 Inch

Product Description

The PARLEC ER32-0187 is an ER32-series collet designed for precision workholding in CNC machining centers, milling machines, and other rotating spindle applications. It accepts a nominal collet capacity of 0.187 inches, with a minimum collet capacity of 0.148 inches, providing a controlled clamping range suitable for end mills, drills, reamers, and similar round-shank tooling. The overall length measures 1.574 inches. This collet is installed by machinists and tool-room technicians as part of a standard ER32 collet chuck system.

This collet is suited for use in ER32-compatible collet chucks found in both production and job-shop environments. It supports general-purpose metal cutting, precision drilling, and reaming operations across a range of materials. Typical installations are found in CNC mills, manual knee mills, and machining centers wherever an ER32 chuck system is in service. The 0.187-inch capacity makes it a practical selection for quarter-inch-class tooling with slightly undersized shanks.

Key Features

• ER32 collet series for broad compatibility with ER32 chuck systems
• Nominal collet capacity of 0.187 inches with a minimum capacity of 0.148 inches
• Overall length of 1.574 inches for standard ER32 chuck engagement
• Precision clamping for end mills, drills, reamers, and round-shank tooling
• Compact, low-profile design suited to production and job-shop use

Compatibility

Designed as a direct-fit replacement for ER32-series collet chucks accepting a 0.187-inch nominal collet capacity.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Before inserting or removing collets, ensure the spindle is fully stopped and the machine is powered down or placed in a lockout-tagout state per applicable safety procedures. Seat the collet fully into the nut before threading the nut onto the chuck body, and use a calibrated collet wrench torqued to the chuck manufacturer's specification. Inspect the collet bore and mating surfaces for chips or damage before each use.