1.   The tools necessary for this carving, are a hacksaw blade with one end wrapped in duct tape to act as a handle. The teeth of the saw blade should always point away from the handle. You will also need a file of some type, or a coarse piece of sandpaper. For the sanding you will require several grades of silicon carbide waterproof paper, 240 and 600 grits will do.

2 I chose an almost triangular flat piece of stone to make the arrowhead.
With the hacksaw, I cut off part of the back to get it to a triangular shape. Then notches are cut on either side of the back to form the arrowhead shape.