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Old 03-27-2003 | 01:10 AM
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SHARK
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From: Sheboygan Falls, Wis. USA
Default Drill size
A number 51 drill is .0670 inch. The closest fraction drill is 1/16 which is .0625 or .0045 smaller.
The number (and then letter) size drills fall in between the fraction sizes. The larger the number, the smaller the drill.
A good hardware store should have number drills if you want to be precise, otherwise just use 1/16 and wiggle it a little.
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