A blow torch is a tool that produces a high-temperature flame, typically used for tasks like welding, soldering, and brazing. It combines fuel, usually propane or acetylene, with oxygen to create a focused and intense heat source. This makes it ideal for melting metals or cutting through materials. Blow torches come in various sizes and designs, from small handheld models for DIY projects to larger industrial versions for heavy-duty work. Safety precautions are essential when using a blow torch, as the flame can reach very high temperatures, posing risks of burns or fire hazards.