Here are some of the holepunches we use around the workbench when building amplifiers and control boxes : http://homepages.dstream.net/K0FF/HomebrewTips/Greenlee.jpeg Happy Building, Geo>K0FF -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com