Zafin harshen wuta na tocilan oxy-acetylene dole ne ya wuce 3000 ° C.
Ana amfani da wannan fitilar don aikin yankan ƙarfe da walda. Yana haifar da harshen wuta mai zafi ta hanyar haɗuwa da iskar oxygen, tare da tsaftataccen kewayon 93.5% ku 99.2%, da acetylene, yadda ya kamata narke karfe.