Up for sale is a New Old Stock Craftsman 7 Pc. Universal Ratcheting Flex Wrench Set. This is a new, unopened set that includes sizes 5/16-11/16. These are universal wrenches that fit a wide range of fasteners. These have an A-AH date code, making them some of the last universal wrenches offered by Sears Craftsman.The 1/2 wrench has some surface rust lines on the open end but it seems to be under the finish as it is completely smooth to the touch.