Gransfors Bruk 490-2 Double Bit Working Axe: The Gransfors Double Bit Axe is based on the North American working axes, but has been modified for use in axe throwing. Both edges are identical and the centre of gravity and handle are carefully positioned so that the axe rotates well in flight. The dimensions of the axe comply with the rules for axe throwing. The Double Bit Axe can also be used as a working axe in the forest, although this is rare nowadays. In this case it should be longer, which is why the axe is also available with an 35 in. handle.