Chain Wrench, 4 1 2 in to 7 1 2 in Opening, 29 in Chain, 36 in OAL no checkout coolers at sporting events coolers at sporting events Crosshatch teeth to provide maximum grip Precision machined knife and anvil style cutting edges ensure perfect mating for superior performance and longevity CHANNELLOCK BLUE® grips for comfort Laser heat treated cutting edges perform better and last longer Option available with Xtreme Leverage Technology (XLT™) for increased performance and reduced hand fatigue (326) ratchet like action in either direction Heavy duty model has replaceable alloy steel jaws Light duty model has a one piece forged alloy steel handle and jaw Double jaw gives fast