Allen key in T-shape from the company Force with a tip size of 4. A hex key is ideal for all types of use by any professional mechanic, plumber, carpenter, electrician, as well as for household use.

Hex keys are formed from a single piece of hexagonal rod made of hardened steel with blunt ends that fit comfortably into similarly shaped screw sockets. Due to its shape, it allows you to exert more pressure, making the work easier.