US Patent 10953520 Open-end wrench head

In one example embodiment, the present invention is an open-end wrench head that has an orifice and two jaws. Each jaw has an inner part, an outer part, and a terminal tip end. Each inner part is formed for contact and engagement with a work-piece such as a nut or bolt. Each outer part is viewable from a side view of the wrench head and has a predetermined length. The outer part of at least one jaw has at least one groove formed therein creating at least two adjacent ridges running at least partially along the length thereof.