[modeleng] Re: Diamond Core Drills
- From: Allen Messer <al_messer@xxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Tue, 8 Apr 2008 18:12:49 -0700 (PDT)
Maybe a Mechanics' hand Impact Wrench with a an
appropriate blade for the screw heads would create
enough vibrations to break it loose??
Al Messer
--- Clifton Walker <clif.gwr@xxxxxxxxxxxx> wrote:
> Hi All,
>
> The Diamond Core drill worked a treat although I
> wish I had bought more
> drills.
> I only bought one and after the initial bit of fast
> cutting it became a slow
> slog as the drill seemed to wear its way through the
> metal rather than cut
> it. I used an electric drill which I kept at a
> fairly low speed and used
> water with a touch of washing up liquid to lubricate
> the drill.
>
> The ironic bit of the story is, after slowly wearing
> my way down through the
> bolt head, when I reckoned that I was almost down to
> the washer under the
> bolt head I gave it a tap on the outside with a
> screw driver and hammer.
> Although the remains of the head were only hanging
> on by a thin bit of metal
> the whole bolt spun free and I took it out using
> finger power only.
>
> This raises another interesting point.
>
> I remember years ago the theory that with the right
> sort of vibration the
> tightest nut or bolt will loosen off.
> Bearing in mind how tight this bolt was, using the
> diamond core drill did I
> just happen to hit on the right combination of
> frequency to make the bolt
> loosen off?
>
> I think that this technique could be used to remove
> broken taps or drills.
> Mind you the resulting hole will be far larger than
> the original intended
> hole but thats better than scrapping a valuable bit
> of machinery
>
>
> Regards
>
> Clif
>
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