US Patent 6945141 Reversible ratchet type wrench

A reversible ratchet type wrench includes a handle and a box end extending from an end of the handle and having a hole. A compartment is defined in a peripheral wall defining the hole of the box end and communicated with the hole. A receiving hole extends from a side of the box end toward the other side of the box end but spaced from the other side of the box end. The receiving hole intersects the compartment. A bulge portion is formed in a conjunctive area between the handle and the box end. A slot is defined in the bulge portion and communicated with the receiving hole.