How to Make a Traditional Broadhead
- 1). Select a flat piece of stone, preferably obsidian, chert or flint. Find another hard, round stone such as a smooth river rock. The river rock will be used as a hammer stone for the knapping process.
- 2). Drape a piece of leather or rawhide over the palm of your non-dominant hand. Place the stone to be knapped in the leather. This will protect your hand from abrasion while striking the stone.
- 3). Strike the stone along the edges repeatedly until you have a triangular shaped stone. Flip the stone over and strike in the same manner to begin sharpening the stone.
- 4). Take a narrow ended piece of bone or antler and hold the end onto the edge of the stone in your palm. Push down firmly and push away. This is known as pressure flaking, and will flake off edge material, creating a sharp edge. Perform this step on both sides of the triangle, excluding the bottom. Flip the stone over and flake the opposite side until you achieve a sharp cutting edge from top to bottom on both sides.
- 5). Chisel a small groove on both sides using a thin, coarse stone -- about 1/4 inch from the triangle base. These grooves will be used to secure the arrowhead to the shaft.
Source...