The Model 20 UTL vertical drill from E-Z Drill allows companies to pinpoint the site of a gas leak without tearing out a significant stretch of roadway. Utility companies can drill through the road surface in periodic intervals to check for gas. This enables workers to narrow the potential leak area to a stretch between holes that would need to be removed for repair work, rather than destroying a much longer length of road. The standard 18-inch drill depth can be significantly modified based on needs, with depths customized to several feet. Bit diameters range from 5/8 to 2 1/2 inches. A minimum of 100 cfm compressed air is required for operating the drill. It comes with quick-coupler air fittings and a quick-release bit guide. It weighs 207 pounds and is supported by a 29-inch wheelbase. Since the frame absorbs vibrations, it reduces hand, arm and back injuries typically associated with hand-held rock drills. 800/272-0121; www.ezdrill.com