Techniks 22939-6B End Mill Holder CAT50 5/8 Inch Through Coolant

Product Description

The TECHNIKS 22939-6B is a CAT50 taper shank end mill holder designed for CNC machining centers that use the CAT50 spindle interface. It accepts a 5/8-inch bore and delivers a 6-inch projection from the spindle face, giving operators extended reach for deep-cavity milling and complex workpiece geometries. The 1.5-inch nose diameter provides solid clamping mass around the collet seat. Built-in through-coolant capability routes cutting fluid directly to the tool tip, supporting higher feed rates and longer tool life in demanding metal-removal applications. Machinists and CNC setup technicians install this holder as part of a precision tooling assembly.

This holder is suited for production and job-shop environments running CAT50-equipped vertical or horizontal machining centers. The 6-inch projection makes it a practical choice when standard-length holders cannot clear fixturing, deep pockets, or tall workpiece features. Through-coolant support is especially useful in steel, stainless, and titanium milling where heat management at the cutting edge is critical. At 8.9 pounds, the holder has the mass typical of heavy-duty CAT50 tooling used in rigid, high-torque spindle applications.

Key Features

• CAT50 taper shank for direct spindle mounting on CAT50 machining centers
• 5/8-inch bore accommodates standard end mill shank sizes
• 6-inch projection provides extended reach for deep-cavity and obstructed-access milling
• Through-coolant design delivers cutting fluid directly to the tool tip
• 1.5-inch nose diameter for robust clamping geometry and tool stability
• 10-inch overall length suits a wide range of setup configurations

Compatibility

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

Installation Notes

Installation should be performed by a qualified machinist or CNC toolroom technician. Power down and lock out the spindle before loading or unloading any toolholder. Use the appropriate CAT50 retention knob torque and pull-stud specification for the target machine spindle - confirm these values with the machine tool manufacturer. Verify through-coolant port alignment with the spindle coolant supply before operation.