Heavy-duty 6.0 Amp hi-tech motor Low speed 0-900 RPM or high 0-3,200 RPM Quick action disengagement of drilling 2 rear gauges, high/low torque Drills up to 1/2" in concrete, 1-1/2" in wood Drills up to 1/2" in steel at low speed Side handle rotates 360 degrees Adjustable depth guide & double insulation Keyed chuck 3/4"