The 3212 Erection Wrench is the ideal tool when working with steel framing construction. This heavy duty wrench is designed to work with 3/4" U.S. heavy nuts and are forged from select alloy steel to withstand high-leverage and heavy loads. The continuous taper of handle makes lining-up bolt holes easy and works on a range of bolt and/or hole sizes without binding. The catalog number, bolt size and nominal opening size are stamped on every wrench making it easy to identify the size you need for the job.