A keychain multi-tool is a compact, moveable toolset designed to be hooked up to a keychain. It sometimes contains a wide range of instruments, reminiscent of pliers, screwdrivers, knives, and scissors. Keychain multi-tools are standard as a result of they’re handy to hold and can be utilized for a wide range of duties, from on a regular basis repairs to emergencies.
Keychain multi-tools have an extended historical past. The primary identified keychain multi-tool was invented within the nineteenth century by a Swiss watchmaker named Karl Elsener. Elsener’s software included a knife, a screwdriver, and a pair of pliers. Through the years, keychain multi-tools have advanced to incorporate a wider vary of instruments and options. At present, there are keychain multi-tools accessible that embody every little thing from flashlights to USB drives.
