Techniks 22917-4FB End Mill Holder CAT40 1/2 in Bore

Product Description

The TECHNIKS 22917-4FB is a CAT40 taper shank end mill holder designed for use in CNC machining centers that accept the CAT40 spindle interface. It features a 1/2 inch bore diameter with a 4 inch projection and a 1-1/4 inch nose diameter, making it suited for applications that require extended reach from the spindle face. The holder includes through-coolant capability, allowing cutting fluid to be delivered directly through the tool and to the cutting edge. This holder is installed and serviced by CNC machinists and tool crib technicians working in production or job-shop environments.

This end mill holder is intended for use on CNC vertical and horizontal machining centers equipped with a CAT40 spindle taper. The 4 inch projection suits setups where the workpiece feature depth or fixturing requires the tool to extend further from the spindle nose than a standard-length holder would allow. The through-coolant design supports operations in materials where heat buildup at the cutting edge is a concern. Overall length is 6.69 inches.

Key Features

• CAT40 taper shank for use with CAT40-compatible machining center spindles
• 1/2 inch bore diameter for standard end mill shanks
• 4 inch projection for extended-reach tooling setups
• Through-coolant design delivers cutting fluid directly to the cutting edge
• 1-1/4 inch nose diameter
• Overall length of 6.69 inches

Compatibility

Designed as an OEM-style toolholder for CNC machining centers with a CAT40 taper spindle interface accepting 1/2 inch shank end mills.

Installation Notes

Installation and removal should be performed using a proper CAT40 toolholder tightening fixture and the correct retention knob torque procedure per the machine tool manufacturer specifications. Always power down and lock out the machining center spindle before changing toolholders. Verify that the through-coolant port on the holder is aligned and unobstructed before use. Inspect the taper shank and spindle bore for nicks or contamination before seating the holder.