OldTools Archive

Recent Bios FAQ

264414 gary may 2017‑12‑24 Re: auger forging
Hi John--
  I bought one of those Clico spoons for a song at a garage sale just before I
moved to Olympia, about three years ago.  I expect it'll be turning up soon.  :)
I think you guys who say "stronger" on the solid center augers are probably
right.  I have never twisted an auger to the point of damage, as well as I can
recall, but I can see it happening in the telephone pole boring trade, or in
railroad and shipbuilding, to be sure. So how are they made?  Turned out of
solid stock on a lathe?  Seems wasteful. And impossible, but machining throws on
a crankshaft seems impossible too.                hnyggs---gam
 

How horrible it is to have so many people killed!---And what a blessing one
cares for none of them!
Jane Austen

      From: John Leyden 
 To: OldTools List  
 Sent: Sunday, December 24, 2017 12:28 PM
 Subject: Re: [OldTools] auger forging
   
Gary inquires about the rationale for solid center augers.

My (possibly incorrect/incomplete) understanding is that solid center augers are
supposed to be less likely to flex when drilling very long/deep holes.
Therefore, I infer that they may also be able to handle more torque than a twist
auger bit might (as when driven by a power drill). As far as how they are made I
have no knowledge, but they look like they could be either milled from solid bar
or forged/swaged.

On a related note, another galoot asked me off-list whether the company that had
the auger factory in the video I mentioned the other day was still in business.
Apparently it is not. The company was Clico, of Sheffield, and it looks like it
went out of business almost exactly three years ago.  :-(

John
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Recent Bios FAQ