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View Full Version : What size hole to drill?


stl-rich
08-18-2010, 12:26 PM
I'm sloooowly building a Whiskey Barrel Smoker - I just bought a thermometer on ebay - it has the normal 1/2" npt threads. I want to drill a hole in the barrel so I can thread it in as I did the 3/4" nipples in the bottom.

What size hole should I drill?

Big_T_BBQ
08-18-2010, 12:32 PM
If you want to thread the wood, use a 23/32" bit. Just remember an NPT is tapered so it'll go in easy then get tighter

spicewine
08-18-2010, 12:33 PM
23/32 for 1/2 NPT

stl-rich
08-18-2010, 12:38 PM
If you want to thread the wood, use a 23/32" bit. Just remember an NPT is tapered so it'll go in easy then get tighter

Just what I want, right? :becky:

Thanks Jay :clap2: