To the industrial tool market, it means quality. In 1910, William G. Allen patented a cold drawing process for making hex socket set screws that were stronger than any other at the time. These quality fasteners demanded quality tools, so it wasn't long before the Allen hex wrench was created. As the business grew, so did Allen'sreputation for uncompromising quality. Today, the makers of the number one hex key in the world have put nearly a century of experience into an industrial hand tool line with the quality, durability and value worthy of the name Allen.