This is a true fire multi tool. The divot in the steel is used as a bearing block for bow drill which is one less piece of a bow drill kit you have to track down. Make your char cloth with the tin. The steel is also used with flint (chert) for flint and steel fire and the edge is also used with a ferro rod. This allows this kit to be used through varies level of fire technology.
Multi Fire Tool
Piece of Flint (sizes vary)
*Arrow is made of steel. Item will need regular oiling & cleaning, as surface rust does occur over time.