Scorpion Cutting Tip: Flame Tech H-SCRAPPER-4 Scorpion heavy-duty cutting tip is designed to be used with an OEM torch. The unique design is affordable and it increases productivity, cuts faster, and lasts longer Thick Shell: Scorpion shells are thick; made from solid bar stock, as opposed to tube stock, the structure of the tool allows for a longer shelf life and better protection of the internals Compatibility: Flame Tech’s Scorpion heavy-duty tool is designed to work with propane and natural gas. Custom-engineered jet length produces improved laminar flow, resulting in narrower kerfs and faster cutting speed Harris-Compatible: The heavy-duty cutting tip is compatible with a Harris torch and is available in size 4. It allows for larger splines, resulting in increased gas flow and shorter pre-heat time. The cutting capacity is 4 Tested in the USA: The H-SCRAPPER-4 Scorpion heavy-duty cutting tip is 100% flame-tested in the USA for great performance. The tool comes with a 1-year manufacturer warranty