Parlec ER25-0187 ER25 Collet 0.187 Inch

Product Description

The PARLEC ER25-0187 is an ER25 series collet designed for precision workholding in CNC machining and milling applications. It accepts a collet capacity of 0.187 inches and measures 1.338 inches in overall length. The collet follows the standard ER25 taper profile, allowing it to seat securely in compatible ER25 collet chucks. Machinists and CNC operators install this collet when gripping round shanks, drill bits, end mills, or other tooling that falls within its clamping range. The compact form factor and consistent bore geometry support accurate, repeatable tool runout in production environments.

This collet is suited for use in machining centers, CNC mills, lathes with live tooling, and manual milling machines equipped with ER25 collet chucks. It is appropriate for both job shop and production floor use where secure, concentric tool clamping is required. The 0.187 inch capacity makes it a practical fit for common fractional and wire-gauge tooling sizes within that range.

Key Features

• ER25 collet series for use with standard ER25 collet chucks
• Collet capacity of 0.187 inches with a minimum collet capacity of 0.148 inches
• Overall length of 1.338 inches for compact toolholder fitment
• Consistent taper geometry supports accurate tool seating and reduced runout
• Suitable for round-shank tooling including end mills, drills, and reamers

Compatibility

Designed as an OEM-style replacement or direct-fit collet for machining setups using ER25 series collet chucks and toolholders.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Before inserting or removing collets, ensure the machine spindle is fully stopped and locked out per applicable safety procedures. Seat the collet fully into the nut before threading onto the chuck body to prevent damage to the collet taper. Inspect the collet bore and chuck taper for chips or contamination before each use.