The 24-in-1 multi-function key is made of high-hardness metal material, which is strong and durable, not easy to be damaged, not easy to be corroded and oxidized, and has a long service life. It can be used as a drill driver, wrench, stripper, wire bend/ bike spoke spanner, measuring ruler, screwdriver, bottle opener, loop for keychain, sawooth edge, corkscrew, protractor and so on. It is a useful tool indoor and outdoor, suitable for simply installation and repair. It is a perfect handmade accessory tool wherever in your house, company or going hiking, going to the mountain or going cycling.