Provides a constant water flow for drilling with wet core bits,water fed Drill Head Assembly is used with our sintered diamond core drills to provide a water flow through the center of the core drill for easy flushing of ground glass from your piece as you drill. The Drill Head Assembly chucks into your drill press and is used with a submersible pump to provide water directly to the attached core drill. These water feeding swivel adaptors are for supplying water or coolant through the center of a 10mm shank core drill bit such as our range of sintered diamond core drills. This will help cool the drill bit and the material you are drilling preventing overheating and therefore prolonging the life of your drill bit. Furthermore this will help prevent cracks forming in your material.