Kennametal 1026382 CAT40 End Mill Holder 3/4 Inch Through Coolant

Product Description

The KENNAMETAL 1026382 is a CAT40 taper shank end mill holder designed for precision milling applications on CNC machining centers. It accepts a 3/4 inch tool shank and provides 1.75 inches of projection from the spindle face, giving machinists clearance for a wide range of cutting operations. The holder features through-coolant capability, delivering coolant directly to the cutting zone via the spindle. With a clamping depth of 2.4 inches and a 1-3/4 inch nose diameter, it offers solid tool retention for high-speed work up to 12,000 RPM. Licensed machinists and CNC setup technicians are the primary installers of this holder.

This end mill holder is suited for use on vertical and horizontal CNC machining centers equipped with a CAT40 spindle interface. It is appropriate for both production shops and toolrooms running ferrous and non-ferrous materials where coolant delivery at the cutting edge improves tool life and chip evacuation. The 5/8-11 drawbar thread matches the standard CAT40 pull-stud specification common on most domestic and imported VMC and HMC platforms.

Key Features

• CAT40 taper shank for positive spindle engagement on standard CNC machining centers
• 3/4 inch bore diameter accommodates a common end mill shank size
• Through-coolant design channels coolant directly through the spindle and holder to the cutter
• 1.75 inch projection provides workpiece and fixture clearance
• Balanced to 12,000 RPM for stable high-speed operation
• 2.4 inch clamping depth for secure, rigid tool retention

Compatibility

Designed as an OEM-style end mill holder for CNC machining centers with a CAT40 spindle interface and a 5/8-11 drawbar thread standard.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician using a proper CAT40 tool-setting fixture or torque arm and spanner. Always power down and lock out the machining center spindle before changing toolholders. Ensure the taper and spindle bore are clean and free of chips or coolant residue before seating the holder. Follow the machine tool builder guidelines for drawbar torque and pull-stud specification to avoid damaging the spindle or holder taper.