Everyone Thank you so much for the info and tip's on drilling ten gallon tanks! I am pleased to report that I think I was going to fast, with to much pressure! I was able to drill my first tan this morning with out breakage! Gee..only 30 more to go;) Thanks again everyone! Markus To join the AKA see http://www.aka.org/pages/join.html Archives are at http://fins.actwin.com/killietalk/