Top 100: Quick Changeover from Dig to Drill

Rev Drill provides simple, quick changeover between digging and drilling. Applications include caissons, down-hole hammer and horizontal applications such as tiebacks and soil nails. Applications can be changed with minimal change to the base drill. All drills have hollow-core motor for top swivel, removable motor sled, and removable guides. Three models are available in excavator-weight classes of 20,000, 30,000 and 40,000 pounds. Estimated price: $55,000 to $75,000.