31 Screwdriver Bit in 1 Screwdrivers Tool Repair Kit Perfect for on the job or around the house. Including 1 magnetic handle, 30 blades 9 Heads Torex T4, T5, T6, T7, T8, T9, T10, T15, T20 (cell ph, PC, hard drive, printer, Xbox, shaver) 8 Heads Hex 0.7, 0.9, 1.3, 1.5, 2.0, 2.5, 3.0, 4.0 (model, bicycle, Engine, Guns) 7 Heads Straight 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0 (Most common Straight heads) 4 Heads Philips PH000, PH00, PH0, PH1 (Most common cross heads) AND 2 Heads Philip Z0, PZ1