USAG/Facom 54A Series Heavy Duty Offset Ring Wrench-100mm (54A.100) - heavy duty offset ring wrenches available in sizes 24mm to 100mm . High torque/leverage from 4 different length handles (ordered separately). This size wrench requires a 54.M4B drive bar. Made in Germany. Identical to the Facom branded tool but at a cheaper price with US warranty.