Spud Wrench 3/4-Inch Bolt for Heavy Nut Klein Tools 3212 Forged from select alloy steel to withstand high-leverage and heavy loads Extra heavy-duty head area gives maximum strength and durability Nominal Opening: 1-1/4-Inch (31.8 mm) Catalog number, bolt size and nominal opening size are stamped on every wrench for easy identification Continuous taper of handle makes lining-up bolt holes easy and works on a range of bolt and/or hole sizes without binding