The Tamiya Builder's 8 Piece Screwdriver Set. This is a set of 8 screwdrivers of assorted types and sizes. Set consists of three sizes of (+) screwdrivers, two (-) screwdrivers, two nut drivers, a hex wrench, plus a detachable grip. Packaged in a handy plastic carrying case. Manufacturer: Tamiya Model: 74023 Builder's 8 Piece Screwdriver Set