The label on this one http://home.clear.net.nz/pages/joecolquitt/drills.jpg says "6-18V 14,5000rpm". I run it at 13.5V, so.....12,000 ? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist