Klein Tools 3214 Spud Wrench, 1-5/8-Inch Nominal Opening, 1-Inch Bolt for U.S. Heavy NutForged in the USA from select US alloy steel to withstand high leverage and heavy loads Extra heavy duty head area gives maximum strength and durability Continuous taper of handle makes lining up bolt holes easy and works on a range of bolt and or hole sizes without binding Extra large hub area works on larger diameter holes better than other wrenches Catalog number, bolt size and nominal opening size are stamped on every wrench for easy identification