Techniks 04544-06 ER20 Collet 6mm Through Coolant

Product Description

The TECHNIKS 04544-06 is an ER20 series collet designed for precision workholding in CNC machining centers, milling machines, and similar rotating spindle applications. Built to the ER20 collet standard, it accepts a 6mm clamping diameter and features through-coolant capability, allowing coolant to flow directly through the collet to the cutting tool. Total Indicator Runout (TIR) is rated at 0.005mm, supporting tight-tolerance machining operations. Overall length is 1.24 inches with an overall diameter of 0.83 inches. Installation is performed by machinists and CNC setup technicians as part of standard tooling changeouts.

This collet is suited for use in any ER20-compatible collet chuck or toolholder found in production and job-shop machining environments. The through-coolant feature makes it appropriate for drilling, reaming, and milling operations where direct coolant delivery to the cutting edge reduces heat and extends tool life. The 6mm bore targets metric tooling commonly used in precision and high-speed machining applications.

Key Features

• ER20 collet series - fits any ER20-standard collet chuck or holder
• 6mm clamping diameter for metric tooling
• Through-coolant design routes fluid directly to the cutting tool
• TIR of 0.005mm for high-precision runout control
• Compact profile: 1.24 inches overall length, 0.83 inches overall diameter

Compatibility

Designed for use with ER20-standard collet chucks and toolholders. Compatible with any spindle or holder built to the ER20 collet specification.

Installation Notes

Installation and removal should be performed with the spindle fully stopped and the machine in a locked-out, tagged-out state per applicable safety procedures. Use the correct ER20 collet nut and spanner wrench to seat and torque the collet nut properly. Ensure the collet is fully snapped into the nut before inserting it into the chuck body. Inspect the collet bore and seating surfaces for chips or debris before each use to maintain TIR performance.