The Allen Key, also known more descriptively as the Hex Key, is used to turn hexagonal screws or drive in hexagonal bolts.
It is an L shape and has a long "arm" which is used to generate torque.
Each key is designed to be used by screws of a specific size, and so the tool is often sold in kits of varying sizes.
It is an L shape and has a long "arm" which is used to generate torque.
Each key is designed to be used by screws of a specific size, and so the tool is often sold in kits of varying sizes.