Core drill holder with cooling JEI

Easily converts a drill press, milling machine, lathe or CNC machine to accept cutters, therefore increasing their versatility, and capacity to cut up to 3 times larger diameter holes than solid drills allow. Also will suit most portable magnetic drilling machines with a morse taper fitting as a spare or replacement arbor. Available with or without an external coolant ring, which allows cutting oil to be internally fed through the tool, resulting in a cleaner hole finish, positive ejection of the centre slug and prolonged cutter life.