Re: Cobalt Drill Bits
- From: Ernst <a6mech@xxxxxxxxxxxxxx>
- Date: Sun, 4 Jan 2009 14:45:32 -0800 (PST)
On Jan 4, 2:56 pm, F. George McDuffee <gmcduf...@mcduffee-
associates.us> wrote:
<clip>
Most likely some sort of self-threading/tapping screw.
You are right, sir.
A useful trick that sometimes works is to get an old heavy
plumber's soldering iron, the type that you heat with a blow
torch, get it really hot, apply to the center of the screw head,
get the screw really hot, [tends to break the corrosion seal
between the aluminum frame and steel screw as the aluminum
expands more than the steel does] and unscrew ASAP. You can also
try penetrating oil, but I have never had much luck with this.
Anyone have a "secret formula" or brand for aluminum/steel
corrosion?
Just the sight of the screws begged for saturation with Aero Kroil
(which happened). Wonder if application of a 100W Weller soldering
gun would work vice the plumber's iron?
Ernst
.
- References:
- Cobalt Drill Bits
- From: Ernst
- Re: Cobalt Drill Bits
- From: F . George McDuffee
- Re: Cobalt Drill Bits
- From: Ed Huntress
- Re: Cobalt Drill Bits
- From: wfhabicher
- Re: Cobalt Drill Bits
- From: Ed Huntress
- Re: Cobalt Drill Bits
- From: Ernst
- Re: Cobalt Drill Bits
- From: F . George McDuffee
- Cobalt Drill Bits
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