Popular medium-duty cutting attachment easily cuts up to 6-inch (153 mm) steel. Solidly constructed to last a lifetime — silver-brazed joints, stainless steel tubes, brass forged butt and head. This torch has the same quality features and construction as the larger and heavier Miller | Smith cutting attachments. Use with any industrial fuel gases — acetylene, propane, butane, natural gas, propylene, hydrogen and many others. MC500 series cutting attachments are covered by our warranty when used with authentic Miller | Smith tips.