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Old 03-22-2012, 12:44 PM   #9337
Nemo
Knows what a fatty is.
 
Join Date: 02-29-12
Location: Suburb of NYC
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Started on the intake holes with a titanium bit then the hole punch. Fortunately I started with a 3/4" punch but found out afterwards that it doesn't make a 3/4" hole. It's a bit oversized, almost 7/8". This greenline punch is made for electricians I believe (holes in panels, etc) and I suspect the 3/4" is made to fit the connectors that fit on the end of 3/4" conduit, hence why they are a little oversized.

So ordered a step bit to drill out to 1". Hopefully someone will avoid the mistake I almost made with this bit of info.
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File Type: jpg Punch .75 inch.jpg (48.9 KB, 1010 views)
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