Techniks 22990 CAT50 End Mill Holder 3 Inch Projection

Product Description

The TECHNIKS 22990 is a CAT50 taper shank end mill holder designed for securing end mills in CNC machining centers. It features a 20mm bore diameter and delivers a 3-inch projection from the spindle face, providing the clearance needed for deep-reach milling operations. With an overall length of 7 inches and a nose diameter of 52mm, this holder is built for rigid, accurate tool clamping in demanding production environments. Typically installed by CNC machinists and toolroom technicians, the 22990 is a direct-mount solution for standard CAT50 spindle interfaces.

This end mill holder suits vertical and horizontal CNC machining centers equipped with CAT50 spindle tapers. The 3-inch projection makes it well suited for operations requiring extended tool reach, such as milling around fixtures or into deeper workpiece features. The 20mm bore accommodates end mills with a 20mm shank. Through-coolant is not supported, so coolant delivery must be directed externally. This holder is a practical choice for general-purpose milling in both job shop and production machining settings.

Key Features

• CAT50 taper shank for direct mounting to CAT50 CNC spindles
• 20mm bore diameter for secure end mill clamping
• 3-inch projection for extended tool reach applications
• 52mm nose diameter provides a robust clamping collar
• 7-inch overall length suits a range of machining setups
• No through-coolant - compatible with external coolant delivery only

Compatibility

Designed as a standard OEM-style end mill holder for CNC machining centers with a CAT50 spindle taper interface.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machining center before mounting or removing the holder from the spindle. Use the appropriate torque wrench and pull stud rated for CAT50 tooling when securing the holder in the spindle. Inspect the taper bore and spindle socket for contamination or damage before each installation to ensure proper seating and runout performance.