Techniks 22931-8B End Mill Holder CAT50 1/4 in Through Coolant

Product Description

The TECHNIKS 22931-8B is a CAT50 taper shank end mill holder designed for use in CNC machining centers that require a secure, high-rigidity tool interface. It accepts a 1/4 inch bore and provides 8 inches of projection from the spindle face, giving operators clearance for deep-reach milling operations. The 25/32 inch nose diameter keeps the holder compact enough to avoid workpiece or fixture interference in tight setups. Through coolant capability allows cutting fluid to be delivered directly to the tool tip, improving chip evacuation and tool life in demanding cuts. This holder is installed and serviced by machinists and CNC setup technicians in production and job-shop environments.

This end mill holder is suited for vertical and horizontal machining centers equipped with CAT50 spindle interfaces. The 8 inch projection makes it particularly useful for deep-cavity milling, tall-workpiece applications, and setups where standard-length holders cannot reach the cut zone. The through coolant feature supports high-speed and high-feed strategies where flood coolant alone is insufficient. Overall length of 12 inches should be verified against machine travel limits and tool changer clearances before installation.

Key Features

• CAT50 taper shank for compatibility with standard CAT50 spindle interfaces on CNC machining centers
• 1/4 inch bore diameter for secure clamping of 1/4 inch shank end mills
• 8 inch projection for extended reach in deep-cavity and tall-workpiece setups
• 25/32 inch nose diameter minimizes interference in tight milling conditions
• Through coolant design routes cutting fluid directly to the tool tip for improved chip removal and thermal control
• 12 inch overall length - verify against machine tool changer and Z-axis travel specifications before use

Compatibility

Designed for use in CNC machining centers equipped with a CAT50 spindle taper interface and through-spindle coolant capability.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before mounting or removing the holder. Use a calibrated torque wrench and the appropriate pull stud for the machine spindle when securing the holder. Verify total indicator runout (TIR) after installation to confirm proper seating and avoid vibration or tool deflection during operation.