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Old July 11th 18, 05:21 AM posted to rec.bicycles.tech
John B. Slocomb
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Posts: 547
Default drill/tap in frames

On Sun, 8 Jul 2018 19:31:00 -0700, sms
wrote:

On 7/7/2018 7:27 AM, Emanuel Berg wrote:
Are there any secrets to drilling holes in
steel bike frames? I have a couple of discarded
ones I can test on but I thought I'd
ask anyway.

Do you use normal power hand tools like
a drill-screwdriver and/or a drill press (if
possible with the desired bolt position)?

Do the normal rules apply, e.g. to get
a threaded hole for an M6, you first drill with
a 5.0mm drill?

And you can use chainsaw oil, right?


As Jobst Brandt stated: "I don't know many riders who believe that
drilling a hole in a frame tube is a reasonable concept."


Yes, I used to read Brandt's posts and I found him to argue false
facts just about as frequently as he did true ones.

--

Cheers,

John B.
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