18727Re: Instlling Heating Elements
- Feb 1 2:32 AMAnders,
Loved that analogy! Yeah........i recall the time when I used a
spade bit for making big holes in wood on a beer keg just for shucks
and grins to see if it would work. It died a tragic, bitter death.
Holes saws. The way they look here in the U.S. is a painted white,
hollow steel cylinder with big teeth on one end. On the opposite end
is the chuck portion that inserts to the drill chuck........usually
hexagonal in shape due to the cutting forces.
Attached to the chuck end and pass through the center is a 1/4 inch
pilot drill used to guide the hole saw and prevent it from wobbling
during the drill process. However, calling this pilot bit a "drill
bit" is an oxymoron, since I have snapped so many of these pilot
drills while drilling through stainless (and aluminum, just this
morning). I drill a pilot hole roughly the same diameter as the
Here's a link with a picture:
In the picture, the pilot drill / chuck end is removed.
I buy a lot of expendable tools from Harbor Freight since I can go
through grinder discs and drills like a Tijauna tourist goes through
toilet paper. It's a front for tools made in China, but hey, how
sofisticated does a drill have to be? Between there and Home Depot,
I can find about anything I need for project tooling.
These hole saws are kind of tricky to use and take a little patience
to become truly proficient, but the results are quite nice and
reliable. If I ever have problems with hole saws, it's due to the
pilot drill either snapping or bending, so use a pre-drilled pilot
hole. Just go slow and use lubricant as stainless drill generates
some heat that will destroy a bit in a single use.
Anders, I hope this helps!
--- In Distillers@yahoogroups.com, Andrew Forsberg <andrew@u...>
> Big +1 on the beer and bandages there Brian!about
> Can you tell me, and other metalworking-challenged types, some more
> the hole saws? I've found gear to cut larger holes in wood, butthey look
> like the sort of things that'd piss themselves if they stared SSstraight in
> the face.
> All ears!
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