Parlec ER25-0343 ER25 Collet 0.343 in Capacity

Product Description

The PARLEC ER25-0343 is an ER25 series collet designed for use in CNC machining centers, milling machines, and other rotating spindle applications. It accepts workpieces and cutting tools up to 0.343 inches in diameter, with a minimum collet capacity of 0.304 inches. The overall length is 1.338 inches. Machining professionals and tool-crib technicians rely on ER-style collets for their consistent clamping force, broad capacity range, and compatibility with standard ER collet chucks found across a wide range of machine tool brands.

This collet fits ER25 collet chucks used in production and job-shop environments for end milling, drilling, reaming, and tapping operations. The 0.343-inch capacity accommodates a specific range of round-shank tooling and workpiece diameters. It is suited to both light and moderate material removal applications where tool runout and holding security are priorities for the machinist or setup technician.

Key Features

• ER25 collet series for use with standard ER25 collet chucks
• Collet capacity range: 0.304 inches minimum to 0.343 inches maximum
• Overall length of 1.338 inches for compact spindle footprint
• Designed for CNC milling, drilling, reaming, and tapping applications
• Single-piece quantity packaging suitable for replacement or fleet tooling

Compatibility

Designed as an OEM-style replacement collet for use in standard ER25 collet chucks across CNC machining and rotating spindle applications.

Installation Notes

Installation is performed by machinists or tool-crib personnel. Always confirm the spindle is fully stopped and the machine is locked out before changing collets. Seat the collet into the chuck nut before threading the nut onto the spindle nose, and inspect the collet seating surface for chips or debris prior to tightening. Use a properly rated ER collet torque wrench to apply appropriate clamping force.