Brian used a hatchet to cut through the aluminum body of the plane in order to retrieve the survival kit inside.
Brian starts out with a hatchet, which is the only tool he has when he finds himself stranded in the wilderness.
You have to refer that Brian is alone and he has only himself to rely on.
Brian built his shelter under a rock overhang to protect himself from the elements in the book "Hatchet" by Gary Paulsen.
Himself
Brian had a Hatchet that his mother gave him.
Brian makes fire, makes tools, makes a raft, and guts animals with his hatchet.
In the book "Hatchet," Brian tries to end his life by attempting to kill himself with his hatchet after feeling overwhelmed by his situation in the wilderness. He ultimately decides to keep fighting for survival.
Brian is going to his dads house and then the pilot has a heart attack and turns the plane and crashes the plane into the L shaped lake and gets stranded with only himself and his hatchet on a piece of land in the Canadian Wilderness.
Brian carried the hatchet as a tool for survival in the wilderness, not as a weapon. He used it to cut wood, hunt, and build shelter while stranded in the woods.
brian becomes more confident in himself and learns how to survive on his own.
When Brian says he has nothing after losing the hatchet, he is referring to the hatchet being his most valuable and essential tool for survival. Without it, he feels vulnerable and ill-equipped to handle the challenges of the wilderness. The hatchet symbolizes his ability to provide for himself and stay alive in the harsh environment.