In the entire sikh history , this seems to be the only engineered torture device mughals must have used in sikh history . Ratan Singh bhangoo writes Bhai Subeg singh and his son were tortured on it and later locked up in jail when they still refused to convert to islam. However if it has such huge blades on it , then there's no way someone could survive so much of blood loss .Perhaps there were no spikes and it was only used to break bones all over the body . Perhaps the mughals had 2 such