Includes 3 bits needed for Nintendo Products: 3.8mm security bit, 4.5mm security bit, and Triwing * All bits made of high quality CRV6150, superior to carbon steel, heated steel, and carbon steel. * Allows you to open games and consoles from SNES, NES, N64, Sega, Sega Genesis, Sega Master System * Super Nintendo, Nintendo 64, Game Cube, Virtual Boy, Game Gear, TurboGrafx 16, TurboDuo. Sega 32X * Nintendo Wii, Wii U, Nintendo and Sega used some of the strangest fasteners to keep people out of their games. This set of three bits are all rare hard to find tools that you need to clean and repair your consoles and games. Lengths: 4.5mm security bit is 5 cm long (2 inches, 3.8mm security bit is 4 cm long (1.6 inches long, Triwing bit is 5 cm long (2 inches, with a usable length of 23mm (.9 inches). Screwdriver handle not included. If you do not own a screwdriver handle we recommend our ATKNND screwdriver set, sold separately. Please note that to open some Nintendo Consoles you will also need a Phillips size #00 screwdriver, which is sold separately.