The RS-12 12 Inch, Wide Opening Adjustable Miners Wrench, the first of the Rastall Tool fleet has been sold respectively in the industry since 1976. The RS-12 has a special wide opening and is the largest available in its class in a 12” adjustable wrench. The 7/8” box end portion of the RS-12 Wrench is used for pulling drill steel and accommodates nuts on 1”-3” Victaulic couplings. The RS-12 Miners Wrench can be used in various trades including, but not limited to, mining, forestry, automotive and construction. RS-12 wrenches meet all of the U.S. and Canadian specifications making it the top of its class.