How to make a traditional hand drill

The traditional hand drill is made as shown in the figure;

1, remove the nail head with a steel nail, knock the nail tip flat and file it into a triangle. File its tip into a sharp blade shape and knock it into the head of the main rod, which is reinforced with an iron ring.

2. Make an 80x 150x30mm pendulum with hardwood blocks.

3. Make a 500x30x20mm cross arm with hardwood.

4. Finally, the rope made of beef tendon.

5. The main pole is made of hardwood, with a diameter of about 25-30mm and a length of 500mm.