Metabo SBE561 601160420 4.5 Amp 1/2-Inch Hammer Drill,Metabo,SBE561" /> Drilling capacity in - Concrete 1/2 " - Steel "3/8 " - Softwood 3/4"" Maximum impact rate 50000 /min Rated no load speed 0-2800 /min Torque 40 in-lbs Maximum speed controlled by adjusting dial