A keychain multi-tool is a compact, portable toolset designed to be attached to a keychain. It typically includes a variety of tools, such as pliers, screwdrivers, knives, and scissors. Keychain multi-tools are popular because they are convenient to carry and can be used for a variety of tasks, from everyday repairs to emergencies.
Keychain multi-tools have a long history. The first known keychain multi-tool was invented in the 19th century by a Swiss watchmaker named Karl Elsener. Elsener’s tool included a knife, a screwdriver, and a pair of pliers. Over the years, keychain multi-tools have evolved to include a wider range of tools and features. Today, there are keychain multi-tools available that include everything from flashlights to USB drives.
