Accupro 775034 End Mill Holder CAT40 5/8 Inch Through Coolant

Product Description

The ACCUPRO 775034 is a CAT40 taper shank end mill holder designed for precision CNC milling applications. It accepts a 5/8-inch bore and provides 3 inches of projection from the spindle face, giving clearance for a wide range of end mill configurations. The nose diameter measures 1-21/32 inches. Through-coolant capability is supported via both through-spindle and DIN flange coolant delivery, making it compatible with modern machining centers that use high-pressure coolant systems. Total indicator runout (TIR) is rated at 0.0002 inches, supporting tight-tolerance work. The drawbar thread is 5/8-11. Balanced to 30,000 RPM for high-speed machining operations.

This end mill holder is suited for vertical and horizontal CNC machining centers using the CAT40 taper standard. It is appropriate for production shops, tool rooms, and job shops running high-speed or high-accuracy milling operations where coolant delivery to the cutting edge is required. Licensed machinists and CNC setup technicians are the primary installers in both manual and automated tool-change environments.

Key Features

• CAT40 taper shank for broad compatibility with CAT40-spindle machining centers
• 5/8-inch bore diameter accepts standard 5/8-inch shank end mills
• 3-inch projection for clearance on deep-reach and stepped workpieces
• Through-coolant support via through-spindle and DIN flange delivery
• TIR of 0.0002 inches for high-precision milling applications
• Balanced to 30,000 RPM for high-speed spindle use
• 5/8-11 drawbar thread size for secure spindle retention

Compatibility

Designed for CNC machining centers equipped with a CAT40 taper spindle interface and a 5/8-11 drawbar thread. Suitable for use with 5/8-inch shank end mills in through-coolant-capable setups.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machining center spindle before seating or removing the holder. Use a proper torque wrench and follow the machine tool manufacturer's drawbar torque specifications. Verify runout with a dial indicator after installation before running the spindle at speed.