The Big Beaver is ideal for soil sampling in areas inaccessible to truck-mounted rigs. An 18 or 20 hp hydraulic power source produces up to 485 ft. lbs. of torque at the drill, driving a 6” diameter auger up to 100' deep, depending on soil conditions. The Big Beaver's modular frame permits one-man portability. 800.227.7515, Little Beaver. Circle Card No. 325