3.8mm security bits are used to open up nes, snes, n64, game boy original and color games that use these special security bit screws.
4.5mm security bits are used to open nes, snes, n64, gamecube, game gear, turbo grafx, etc. and all systems that use these special security bits screws.
made of quality metal, unlike many of these bits found elsewhere. will not strip easily. fits into a standard drill for power tool operation, if so desired.
brand new, never used. price is for one bit. please choose which size you need before adding to the cart.