You might be asking what is a 3.8mm Game Cartridge tool. Well let me explain. This tool is what you use to open up your Nintendo games. There's three screws on the back of almost all Nintendo games and this tightens and loosens those screws. Unfortunately you can't get this tool in stores. This tool is not needed if you purchase a 72 pin connector. However, it is recommended that you get one, so you can clean your games properly. This will ensure that your new 72 pin connector continues to work.
Unsure how to clean your games effectively? Take a look at our game cleaning guides here.
