The Davis Tool Water Swivel allows you the convenience of using
small diameter diamond core drills with a standard, hand held 1/2" drill. The water
swivel adapts the 5/8"-11 female thread on the core drill to a
1/2" Jacob's chuck on the motor and injects water through the bit. The assembly
comes with an on/off water pet-cock, quick disconnect and garden
hose fitting on the water hose.