Screwdriver For Nintendo - SODIAL(R) 4.5mm Screwdriver Bit Open for Nintendo SNES N64 NES game cartridges Systems Extra large handle for ease of use, much easier to use than bits. Allows for opening and internal cleaning of games as well as battery replacement. Used for dismantle NGC/SFC/N64/SEGA's host machine, also can dismantle WII power, NGC Power.