Provides safe alternative to striking wrenches In confined spaces and on applications that prohibit sparking, offset box wrench head offers access to recessed fasteners and keeps hands clear of obstructions, ergonomic design allows wrenches to be used conventionally without the handle, The handle can be attached to provide increased leverage for final tightening, bar stop on the wrench shaft helps to Align locking button with handle hole.Exhaustive in our efforts to make the world’s safest tools, Unique in the marketplace, relevant to our customer’s work style, Proto helped build 1934 Fords, the Golden gate bridge and Apollo 1473, made in America, making the highest quality tools Comes first, confidence that our tools will help keep them working longer and safer.