The thumbscrew was simple placed on the thumb and tighten until it crushed the thumb. The tool was also used on toes.
These toothed bars squeezed the victim's testicles til they were destroyed.
The victim was placed on the Spanish donkey and then had extremely heavy weights tied to his or her legs until the force was so great that it destroyed the are between the legs.
The Foot Press slowly squeezed the naked foot between the iron plates lined with sharp spikes to crush the bones of the foot.
The Scottish Boot was placed around the ankle of the victim and then wedges were forced into the ankle.