Poacher's Saw

The poacher's saw is an item that will get you the Biggoron's sword in The Legend of Zelda: Ocarina of Time. You get the poacher's saw from someone in the Lost Woods and if you take it to a carpenter in Gerudo Valley he will give you a broken Biggoron's Sword which you can later fix to get a sword 2 times stronger then the Master sword. You can only do this as an adult.