Hi, I've check some air grinders that could be transformed into motor. Free speed: 25000 rpm - Operation pressure: 90 psi - 0.6 HP - Air consumption: 3 cfm - Weight: 1.5 lb What do you think about that? Pierre _________________________________________________________________ MSN Messenger : discutez en direct avec vos amis ! http://www.msn.fr/msger/default.asp