Callaway steelhead xr graphite irons the newest addition to the callaway xr family steelhead xr irons combine the beautiful shaping and playability that made the steelhead x 14 one of the most successful irons of all time we paid special attention to some of the design aspects on the original steelhead iron including a slightly longer blade length a slightly more rounded toe and the signature hosel to face transition the speed and distance of steelhead xr irons is ba