Accupro 775124 End Mill Holder CAT50 3/4 Inch Through Coolant

Product Description

The ACCUPRO 775124 is a CAT50 taper shank end mill holder designed for use in CNC machining centers that require high-precision tool holding with through-coolant capability. The holder accepts a 3/4 inch bore and provides a 1.75 inch projection from the spindle face, positioning the cutting tool at a controlled distance for standard milling operations. A TIR of 0.0002 inch ensures concentricity that supports tight-tolerance work. The through-spindle and DIN flange coolant delivery keeps the cutting zone clear of chips and helps extend tool life. This holder is balanced to 25000 RPM, making it suitable for high-speed machining applications. Installation is performed by qualified machinists or CNC setup technicians.

This end mill holder fits CAT50 spindle interfaces commonly found on vertical and horizontal machining centers used in production and job-shop environments. The 1-8 drawbar thread is standard for CAT50 tooling. Through-coolant support via both through-spindle and DIN flange configurations makes it adaptable to a range of machine coolant delivery setups. It is appropriate for general milling, profiling, and slotting operations where rigidity and runout control are priorities.

Key Features

• CAT50 taper shank for direct spindle mounting on compatible machining centers
• 3/4 inch bore diameter accepts standard end mill shanks
• 1.75 inch projection provides standard tool reach from spindle face
• TIR of 0.0002 inch supports tight-tolerance and finish milling
• Through-coolant compatible via through-spindle and DIN flange delivery
• Balanced to 25000 RPM for high-speed machining applications

Compatibility

Designed as an OEM-style end mill holder for CAT50 spindle interfaces with a 1-8 drawbar thread. Compatible with machining centers equipped with through-spindle or DIN flange coolant delivery systems.

Installation Notes

Installation and tool changes must be performed with the machine powered down and the spindle fully stopped. Use the appropriate CAT50 drawbar wrench and torque procedure specified by the machine manufacturer. Verify TIR after mounting using a dial test indicator before beginning any cutting operation. Follow all applicable shop safety procedures and machine tool manufacturer guidelines during tool holder changes.