"The Ingersoll Rand Rock Drill 60-Lb. Class is designed for construction, industrial and excavation applications. It can drill holes up to 2in. wide and 18ft. deep in hard rock. The tool to choose for blast holes, post holes and anchor holes. Drill Hole Diameter in. 2, Tool Weight Class lbs. 60, Drill Hole Depth ft. 18. Ideal for construction, industrial and excavation applications 7/8in. x 3 1/4in. shank Adjustable 3-speed throttle Reversible pawls Integral muffler"