... , 30 blades as follow:1). 2 Heads Philip Z0, PZ12). 4 Heads Philips PH000, PH00, PH0, PH1 (Most common cross heads ... .0, 2.5, 3.0, 3.5, 4.0 (Most common Straight heads)4). 8 Heads Hex 0.7, 0.9, 1 ... .3, 1.5, 2.0, 2.5, 3.0, 4.0 (model, bicycle, Engine, Guns)5). 9 Heads Torex T4, T5, T6 ...