This screwdrivers is a perfect companion when you take on your building project. It runs on a rechargeable battery, so it's completely cordless.
From Amazon
DeWALT DCD795D2 360W 34000bpm Lithium-Ion (Li-Ion) 162g Cordless Rotary Hammer
Powertool World
DeWalt DCD795D2 18v XR Brushless Combi Drill inc 2x 2.0Ah Batteries