I am a simple man. I bought a set of taps and dies with the drill bits included and only use those bits for that purpose. Minimizes thinkin'. David Lylis 69 TR6 CC26160L 60 TR3A TS74461LO **************It's Tax Time! Get tips, forms, and advice on AOL Money & Finance. (http://money.aol.com/tax?NCID=aolprf00030000000001)