The RS-15 Wide Adjustable Spud Wrench, which has been sold respectively in its industry since 1999, is the widest opening wrench in its class. The bottom portion of the RS-15 Wrench is used for aligning structural steel during erection. The RS-15 Spud Wrench can be used in various trades including, but not limited to, mining, forestry, automotive and construction. Our wrenches meet all of the U.S. and Canadian specifications making it the top of its class.