The OX UMB Ultimate Metal Cutting Blade is designed to cut all metal including Ductile Iron Pipe, Plastic Pipe, Cast Iron, Rebar, Angle Iron, Threaded Rod, Fiberglass and Rubber. OX Ultimate Series Diamond Blades stand apart from the crowd. They're backed by every safety standard, including ISO 9001 and EN13235. Guaranteed safe. Guaranteed to perform. When only the best will do, ultimate says it all.