Don't let its small size fool you, the Big Boy Driver packs a serious punch. With an included adapter that transitions from quarter-inch to four-millimeter bits, its easy to switch from bigger takedown jobs to precision work on delicate gadgets or the tiny screws on your favorite EDC. The smooth ball-bearing spinner makes quick work of any task and a magnetized driver tip secures bits no matter their size. Whether hanging shelves or fine tuning the action on your folder, the Big Boy Driver offers the perfect balance of tenderness and torque.