Techniks 04225-02 ER25 Collet 2mm Through Coolant

Product Description

The TECHNIKS 04225-02 is an ER25 series collet designed for precision workholding in CNC machining centers, milling machines, and other rotating spindle equipment. Built to a 2mm collet size with a total indicator runout (TIR) of 0.005mm, this collet delivers the tight tolerances required for accurate tool holding in production and tool room environments. Through-coolant capability allows cutting fluid to pass directly through the collet body, improving chip evacuation and extending tool life during deep-pocket or high-speed operations. Licensed machinists and CNC technicians are the primary installers and users of this component.

The 04225-02 is suited for use in any ER25-compatible collet chuck or toolholder across general machining, aerospace, mold and die, and precision manufacturing applications. The ER25 collet system is one of the most widely adopted standards in the industry, making this collet a practical fit for a broad range of production environments. It is appropriate for light finishing cuts as well as standard production work where a 2mm bore diameter is required.

Key Features

• ER25 collet series for compatibility with standard ER25 chucks and toolholders
• 2mm collet size for small-diameter tool and workpiece clamping
• TIR of 0.005mm for high-precision runout performance
• Through-coolant design supports direct coolant delivery to the cutting zone
• Lightweight at 0.1 pounds for easy handling and reduced spindle load

Compatibility

Designed as an OEM-style replacement or direct fitment collet for ER25-compatible collet chucks and toolholders accepting a 2mm bore size.

Installation Notes

Installation and replacement should be performed by a qualified machinist or CNC technician. The spindle must be fully stopped and all machine power isolated before removing or seating a collet. Use the appropriate ER25 collet nut and spanner wrench for proper seating torque - do not use improvised tools that could damage the collet taper or nut threads. Inspect the collet bore and chuck taper for debris or wear before installation to maintain rated TIR performance.