The Hydro Swivel Assembly (A-933) fits snuggly over the Hydro/Vac Adapter (M-407). Water flows through the Hydro Swivel Assembly, the Hydro/Vac Adapter, and then the Hollow DrillBit (P-400) to thoroughly flush drilling debris and contaminants from the crack. The Hydro Swivel Assembly is made of tough Delrin and includes a shut-off valve. 1/4″ nylon tubing is normally used for the water supply.

Caution must be used and precautions must be taken when drilling with an electric drill in order to avoid shock!