I have found an old pick axe head which belonged to my Father-in-Law and the wooden handle just fell apart. I have cleaned the metal head and bought a new handle and slotted it through the head. My question is how to keep the head firmly attached to the handle. I also bought two small metal wedges to do the aforementioned but I don't know where to hammer them in. Will it be from the ground level up towards the top or downwards from top to ground. Someone said I had to chisel out some of the wood before hammering the wedges down the side. Any ideas?