This 12-piece screwdriver set is designed for mechanics and features pound-thru functionality for added torque. The set includes both flat and Pozidriv head screwdrivers with magnetic tips, making it easier to handle screws. The set includes: Flat screwdrivers: 6 x 38mm, 3.2 x 75mm, 5 x 75mm, 6 x 100mm, 8 x 150mm, 9.5 x 200mm. Pozidriv screwdrivers: Pz2 x 38mm, Pz0 x 75mm, Pz1 x 75mm, Pz2 x 100mm, Pz3 x 150mm, Pz4 x 200mm. These screwdrivers can be used in conjunction with a spanner or socket for extra torque.