Hitachi FDV16VB2 5 Amp 5/8-Inch Hammer Drill (Certified Refurbished) 1/2-inch hammer drill that offers impact drill or drill-only modes at the push of a button Low noise cooling air-flow design so it won't overheat Contains ball and needle bearings for ultimate durability; double insulated for safety and endurance Industrial grade keyed chuck; trigger-controlled variable speed from 0-2900 rpm