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mo84 · January 17, 2012, 06:39 PM

If I was going to do this I would run through it with gradually larger drill bits ending with a 11/32 drill making sure to clear the chips often. Then I would run a 9mm reamer through it with LOTS of cutting oil, running as slow as you can and making sure the chips are being cleared. A lathe would be optimal but that is hard to come by if you do not have a machine shop avaliable.

January 17, 2012, 06:39 PM	#16
mo84 Senior Member Join Date: February 27, 2011 Location: Michigan Posts: 257	If I was going to do this I would run through it with gradually larger drill bits ending with a 11/32 drill making sure to clear the chips often. Then I would run a 9mm reamer through it with LOTS of cutting oil, running as slow as you can and making sure the chips are being cleared. A lathe would be optimal but that is hard to come by if you do not have a machine shop avaliable.