DeWalt DCF630B 20V Cordless Brushless Screw Gun Screw Gun is designed with wide variable speed range 4 tool modes top mounted electronic mode adjustable nosecone LED light and is lanyard ready. 4 tool modes include trigger mode (high speed) trigger mode (low speed) push start mode and lock on mode. Delivers a maximum speed of 4 850RPM. Screw Gun is lightweight at only 2.6lbs and is less than 12 long.