The Goodson Tools and Supplies High Pressure Oil Gallery Cleaning System is designed to clean oil galleries in most engines, including gas, diesel, stock and high performance. The tool incorporates steel wire brushes with the hydro action of a water manifold and shop air to quickly clean oil gallery holes in gas and diesel engines. The air/water outlet holes are drilled in a spiral pattern to create a swirling effect that helps increase the wand's cleaning power. The standard kit includes a 36" long stainless steel cleaning wand with an ergonomically designed billet aluminum grip and three stainless steel brushes (3/8", 1/2" and 5/8" in diameter).