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Posted by Stormin Mormon on March 26, 2009, 6:01 pm
The fluted part is not as strong. Chucking up the fluted end
risks breaking off. On the other hand, I could be totally
mistaken.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
.
You raise a good point: Why are ALL drill bits not
double-ended?
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Posted by PeterD on March 26, 2009, 6:10 pm
wrote:
>PeterD wrote:
>> Couple of years ago, I erected a large metal building. There was the
>> need to drill many thousands of small holes. At just the right time HF
>> sent me a flyer with a listing basically for the sized bit I needed,
>> bag of 50 for about $10. I figured what the heck, I'd only loose $20
>> so I ordered two packs (that gave me 200 bits, since these were double
>> ended!)
>You raise a good point: Why are ALL drill bits not double-ended?
<bg> Many are, but of course there is the issue of length. The bits in
question are specifically designed for drilling thinner stocks (such
as sheet metal, what I use them for). The chuck must clamp on a smooth
(or hexed) shank, not the cutting portions of the bit. Most chucks
only have about a half inch of space behind the point where they clamp
on teh bit, so the size is limited for that reason.
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Posted by on March 26, 2009, 10:22 pm
wrote:
>PeterD wrote:
>> Couple of years ago, I erected a large metal building. There was the
>> need to drill many thousands of small holes. At just the right time HF
>> sent me a flyer with a listing basically for the sized bit I needed,
>> bag of 50 for about $10. I figured what the heck, I'd only loose $20
>> so I ordered two packs (that gave me 200 bits, since these were double
>> ended!)
>You raise a good point: Why are ALL drill bits not double-ended?
Because with larger bits they would be hell on the chuck!!
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Posted by z on March 28, 2009, 3:10 am
> You raise a good point: Why are ALL drill bits not double-ended?
what would be the point?
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Posted by HeyBub on March 28, 2009, 6:49 am
z wrote:
>> You raise a good point: Why are ALL drill bits not double-ended?
> what would be the point?
There are two, actually.
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