Accupro 775104 End Mill Holder CAT50 1/2 Inch Through Coolant

Product Description

The ACCUPRO 775104 is a CAT50 taper shank end mill holder designed for precision CNC milling applications. It accepts a 1/2 inch tool shank and provides 1.75 inches of projection from the spindle face. The holder features through-coolant delivery compatible with both through-spindle and DIN flange coolant systems, making it suitable for high-speed and high-accuracy cutting operations. With a total indicator runout (TIR) of 0.0002 inches and a balance rating of 25,000 RPM, this holder is built for demanding production environments. Licensed machinists and CNC setup technicians are the primary installers of this toolholder in vertical and horizontal machining centers.

This end mill holder is intended for use in machining centers equipped with CAT50 spindle interfaces. The 1/2 inch bore accommodates standard end mills and cutting tools of that shank diameter. The 1.75 inch projection suits applications requiring moderate tool reach without sacrificing rigidity. The 1-8 drawbar thread is the standard for CAT50 tooling systems. Through-coolant capability supports chip evacuation and tool life in ferrous and non-ferrous machining operations.

Key Features

• CAT50 taper shank for secure spindle engagement in standard machining centers
• 1/2 inch bore diameter for common end mill shank sizes
• 1.75 inch projection for moderate tool reach applications
• Through-coolant support via through-spindle and DIN flange systems
• TIR of 0.0002 inches for high-precision tool runout control
• Balanced to 25,000 RPM for high-speed machining compatibility

Compatibility

Designed as an OEM-style replacement and standard tooling solution for CAT50 spindle machining centers using 1/2 inch shank cutting tools with a 1-8 drawbar thread requirement.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician following the machine tool manufacturer's toolholder seating and drawbar torque procedures. De-energize and lock out the machining center spindle before inserting or removing toolholders. Verify coolant port alignment when using through-spindle or DIN flange coolant systems before initiating a cutting cycle. Inspect the taper shank and spindle bore for contamination or wear prior to installation to maintain runout performance.