Kennedy combination spanners are manufactured from chrome vanadium steel with a satin finish body and highly polished heads. 15 open jaw angle to shank and ring end offset. Conform to: 1/4 inch - 1 inch - DIN 3113. 11/16 inch - 2 inch - ASME B107.6. Contents 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16" and 3/4".