DEWALT DCF681N2 8V Max Gyroscopic Screwdriver with Conduit Reamer Motion Activation variable speed and reversing control by twisting left or right Ream 1/2'', 3/4'' and 1'' conduit and install fittings in a fraction of the time Variable speed 0-430 rpm for fastening into wood, plastic, and light-gauge metal Battery State of Charge on tool indicates when to charge packs LED headlights for illumination in confined areas without shadowing