Usage as a fire drill For use as a fire drill, the shaft should have a blunt end, which is placed into a small cavity of a stationary piece of wood (the fireboard). Turning the shaft with high speed and downward pressure generates heat, which eventually creates powdered charcoal and ignites it forming a small ember.
usage as a fire drill for use as a fire drill the shaft should have a blunt end which is placed into a small cavity of a stationary piece of wood (the fireboard) turning the shaft with high speed and downward pressure generates heat which eventually creates powdered charcoal and ignites it forming a small ember