Model 6290 alternate fuel specialty tips are designed to allow additional performance from our straight cutting torches, eliminating the need for separate handles, tip tubes, etc. Tips are designed for use with alternate fuels.* (*NOT FOR USE WITH ACETYLENE.) Particularly useful where storage space is at a premium. -- Heavy-Duty -- For maximum performance use Harris straight-cutting torches with these tips -- Useful where storage space is at a premium -- 1 Year Warranty -- -- APPLICATIONS: Metal heating, weld repair, rivet washing, rivet cutting, gouging, beam and extended-reach cutting.