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Unread 08-12-2016, 10:15
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electroken electroken is offline
Electron Tamer
AKA: Ken Pontbriant
FRC #0230 (Gaelhawks)
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Join Date: Jan 2012
Rookie Year: 2012
Location: Shelton, CT
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Re: drilling larger holes in aluminum

Quote:
Originally Posted by Whippet View Post
We've been using these carbide hole cutters for bearing mount holes. I do recommend the hole cutter since it makes consistent holes in a drill press and bearings just slide right in there once you get the hang of drilling without applying a lot of force.
We've used cutters like those and they work very well in aluminum. Our approach for bearing holes is a bit different. We use a 28mm cutter (a couple thousandths too small) and follow up with an adjustable reamer for a light press fit of the bearing.
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