Proskit sd-081a precision electronic screwdriver 7 pcs set is multi-functional pocket screwdriver set is easy to use and carry. Aisi 8660 chrome-molybdenum vanadium steel with satin finish, high hardness and durable for use. Precise design, will not damage the screws. Anti-skid tpr handle with ergonomic design, comfortable for use. Fast turning swivel cap, working smartly with the rotation top. Includes 7pcs different screwdrivers, can meet for different needs. Fit for psp, mobile phone, watch, pda, mp3 etc.