crvsecretary
Joined: 18 Mar 2007
Posts: 38
Location: Naugatuck, CT
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 Posted: Wed Apr 04, 2007 5:17 am Post subject: Round Holes |
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Hello Tom:
You ask an excellent question; I chased this 'problem' as well.
I was using quality drill bits and a fast air drill, and my drilled holes were not round either. At least, not 'perfectly' round. I was drilling with a #30 drill bit for the horizontal stabilizer and I wasn't happy with the results until I starting drilling pilot holes with a #40 bit and voila! - ROUND holes !!
Fortunately, rivets (when installed properly) expand to fill those irregular holes.
For the small drill bits we are using, try to get a small, light, FAST drill motor for best results.
Tracy Smith
Naugatuck, CT
601XL N458XL (reserved)
In a message dated 4/4/2007 7:34:34 AM Eastern Standard Time, tommylutz(at)gmail.com writes:
| Quote: | Here's me being inquisitive and picky again:
Has anyone else ever noticed that drilled holes, if examined very closely, are not perfectly round? I'm using bits supplied by Zenith and a Dewalt 110V drill. This is probably a non-issue, but we learn by asking, right? |
See what's free at AOL.com.
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_________________
Zenith 601XL N458XL (reserved)
Naugatuck, CT
Tail Complete; working on wings |
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