The Craftsman Mach Series 3/8" Drive Ratchet combines a push twisting screwdriver, a ratcheting screwdriver and a 3/8" drive ratchet in one tool. This tool offers fast drive technology and is 16 times more efficient than Craftsman's traditional ratchet. Equipped with 72 teeth and five degree arch for precision ratcheting, this tool also features an expandable, reversible helix shaft to provide fast continuous rotation, delivering 1.5 revolutions per stroke. The roto flex head rotates 270 degrees for increased access and better maneuverability in tight places and provides higher torque in the 90 degree positions. The black finish head provides a durable finish that easily wipes clean.