That link was infomative. I guess I should have re-phrased that question though. When and on what in a car would you use a dead-blow? It sounds like (from the dead-blows many uses) that you could use it instead of a regular metal head hammer. Such as banging old rotors off an axle, punching a metal bushing with a driift etc. Anyone agree/disagree?? Thanks for the input, this site is great.