Reed’s large diameter Rotary™ Pipe Cutters cold cut steel, most stainless steel, ductile, and cast iron pipe in close quarters. For more information and to browse all options, please visit br Large Diameter Rotary™ Pipe Cutters are the best manual cutters for ductile iron and a great option for steel pipe. With good leverage from the tool’s long handle, pipe snaps off squarely before wheel penetrates halfway through pipe. These cutters have heavy-duty frames. All sizes use the same cutter wheels: either RCS8-36 for steel and RCI8-30 for ductile and cast iron. Optional RCX wheels cut up to 2532” wall thickness for steel pipe.br br For cutting larger diameter pipe, move up to RC30, RC36, or RC42S cutters, which need 11.8 inches clearance. These large diameter rotary pipe cutting machines feature a long handle with a ratcheting mechanism and include a separate, professional-grade wrench to tighten the cutter at every half revolution.