5-in-1 screwdriver / nut driver, includes: 5/16-inch (8 mm) nut driver plus #1 and #2 Phillips, 1/4-inch and 3/16-inch (7 mm and 5 mm) slotted screwdrivers. Features a patented tip-ident which quickly identifies the type of screwdriver and tip orientation. The driver contains head tips that are precision-machined for an exact fit.