The Hydro Handle is an attachment that lets you wet-drill and polish stone, glass, and tile with any 3/8-inch or 1/2-inch cordless drill. It fits into the end of the drill and holds a coring bit or a diamond polishing pad. A trigger allows the user to feed water or other coolants to the surface as needed from a pressurized aluminum pump bottle.
¦ Price: Kits start at $100. 877-784-9298. www.hydrohandle.com.