We may receive a commission on purchases made from links. The Allen wrench, also known as a hex key, is a L-shaped hand tool with hexagonal (six-sided) ends. It all started with a Connecticut inventor ...

Because of its small size, high torque strength, and recessed installation, the hex socket screw is a great alternative to regular bolts. The main tool used to tighten or loosen hex socket screws is ...

Especially important when it comes to car maintenance, a torque wrench tightens bolts to a specific torque level, ensuring that the fastener is tight enough before completing a job. If a part of the ...