Square Screwdrivers

Square screwdrivers are specialty tools used to tighten or loosen Robertson screws. Both the screwdriver and screws were developed at the beginning of the twentieth century by the Canadian P.L. Robertson to improve performance in those applications where large screwing was required. The square shape ensures a better grip of the screwdriver on the fastener, preventing any slippage and related damages to the workpieces and increasing the working speed. Such a kind of screwdrivers and fasteners became popular in Canada, and some time later, they started to spread worldwide. Today, they can be found in construction and woodworking.

Robertson screwdrivers are characterized by a square-shaped end of the shank that contains a square socket. They can be easily handled with one hand and won't slip even if engaged with an angle. Today, there are several types of such screwdrivers classified according to the tip size and recognizable through the color. For example, the green color corresponds to the tip size number 1. We offer a vast assortment of quality square screwdrivers that meet various requirements and are sold individually or in sets.