Techniks 22917-6 End Mill Holder CAT40 1/2 in Bore

Product Description

The TECHNIKS 22917-6 is a CAT40 taper shank end mill holder designed for use in CNC machining centers that accept the CAT40 tooling standard. It accepts end mills with a 1/2 inch bore diameter and provides 6 inches of projection from the spindle face, making it suitable for operations that require extended reach. The nose diameter measures 1-1/4 inches, and the overall length is 8.687 inches. This holder is installed by machinists and toolroom technicians setting up milling operations where consistent tool runout and rigid clamping are required.

This end mill holder is used in vertical and horizontal CNC machining centers equipped with CAT40 spindle tapers. A 6 inch projection is appropriate for deep-cavity milling, stepped workpiece access, or fixture-clearance situations where a standard short holder would not reach. The 1/2 inch bore accommodates a common end mill shank size used across a wide range of roughing and finishing operations in production and job-shop environments.

Key Features

• CAT40 taper shank for use in standard CAT40 CNC spindles
• 1/2 inch bore diameter accepts common end mill shank sizes
• 6 inch projection for extended reach in deep-cavity or clearance applications
• 1-1/4 inch nose diameter for adequate clamping surface
• Overall length of 8.687 inches
• No through-coolant - external coolant delivery required

Compatibility

Designed as an OEM-style replacement and standard tooling component for CNC machining centers with a CAT40 spindle taper interface.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with CNC tooling setup. Power down and lock out the machining center spindle before installing or removing any toolholder. Use a proper CAT40 pull stud matched to the machine spindle specification, and torque the retention knob according to the machine tool manufacturer guidelines. Inspect the taper shank and spindle bore for contamination or damage before each use to maintain runout accuracy.