The Ring-O-Matic 550 HiCFM VacEx Hydroexcavator comes standard with a 50 hp CAT diesel engine and a 1,000-cubic-feet-per-minute Gardner Denver positive displacement blower. The Cyclo-Jet two-in-one pothole excavator attachment can safely dig a 3-foot hole in 30 seconds, making it useful for contractors looking to locate underground utilities quickly and safely. Equipment is available mounted on vacuum trailers, vacuum trucks and skids. 800/544-2518; www.ring-o-matic.com.