File:Spirit level.jpg

Summary
Danish "Kæppelignende vaterpas". Photo by Bill Ebbesen. Torpedo level - Though it may be used by carpenters this level has a much wider user base in the construction trades. Torpedo levels are also manufactured with a magnetic strip along one side for hands free convenience in working with steel piping, steel studs and structural steel. Torpedo levels are especially useful for anything that needs to be leveled especially in a tight space where a larger level will not fit. This level would not be very accurate leveling anything over much more than 24 inches in length.