Individual 9/16 Inch Combination Box-End Open-End Wrench Raised Panel - Drop Forged Steel - Mirror Chrome Finish Excellent value in one of the most commonly-used (and frequently lost) wrench sizes - 9/16" Drop-forged steel with raised panel for strength, mirror-polished chrome finish resists rust 12-point box-end for sure grip, open end allows superior access in tight fits 6.75-in. length overall Individual wrenches available in 10mm, 13mm, 3/8 and 1/2-in.