On Wed, 18 Apr 2012 16:00:54 -0700, Dave__67 wrote:

On Apr 18, 5:49Â*pm, Tim Wescott wrote:
I've got a little 3oz fuel tank (model airplane) made out of thin
tinplate (a Dole Pineapple Chunk can, actually). Â*So, maybe about 10 or
15mil, with corrugations.

I need to drill a 1/2" diameter hole in it, to solder in a fitting. Â*I
know that if I use a regular 1/2" twist drill I'll just rip out big
hunks of tin -- so that's a no-go.

This is a last-minute rework to get me to a contest this weekend, and
I've spent out the modeling budget this month. Â*So I'd like to be able
to do it with tools I have in the shop rather than spending time or
money I don't have to order something, or even nip around to Horror
Freight.

I have a nice stepped drill that goes up to 1/2 inch, but it's longer
than the tank. Â*I may just go ahead and drill through and patch up the
far end -- but if there's a better solution, I'm open to suggestions.

--
My liberal friends think I'm a conservative kook. My conservative
friends think I'm a liberal kook. Why am I not happy that they have
found common ground?

Tim Wescott, Communications, Control, Circuits &
Softwarehttp://www.wescottdesign.com

Ragged hole a bit bigger and solder in a thicker piece with a good hole?

I'm flying electrics myself, would like a gas plane as an occasional
luxury though.

I've got all this "wet power" stuff lying around, and '08 through '10
were very bad news for me. So I can't quite swing the investment for the
changeover.

But I'd like to -- I'd most certainly like to.

--
My liberal friends think I'm a conservative kook.
My conservative friends think I'm a liberal kook.
Why am I not happy that they have found common ground?

Tim Wescott, Communications, Control, Circuits & Software
http://www.wescottdesign.com