<<The diameter of the hole is 9/16". Supply houses that I know provide either a 1/2" or 5/8" lead. Anybody know where I can get the midsize. >> Greetings, I think you will need to swedge a 1/2" lead to fit. I just put them on a vise-top and whack them with a hammer, they swell out round and with a little practise, you can swedge them so that they are a light press fit. Good luck, Ed Foote RPT
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