The Flex Head Open End Combination Wrenches from Ascot Supply come in 9/16" (No. 313-01916) and 5/8" (No. 313-00158). Each wrench features a flex head capable of tilting 180 degrees with 72 teeth and double-stacked pawls for 144 tips total. The 12-point box end allows the fastener to travel without removing the ratchet head. The non-slip open end allows four contact points, and the conventional open end allows two contact points. The entire tool is made out of chrome vanadium steel for strength and to meet ANSI specifications. The company also adds that the wrenches are professionally plated for corrosion resistance.