The 3214 Erection Wrench is the ideal tool when working with steel framing construction. This heavy duty wrench is designed to work with 1" 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.