[PSUBS-MAILIST] boring tool

[Stephen Fordyce via Personal_Submersibles]

Hi Hank,
You could probably get away with using a holesaw - a one-piece one design
for cutting metal, not the adjustable ones for cutting wood.  It would take
a while and need lots of coolant and force, but I think it would be quite
doable (I've seen big ones used on thick steel before).  The big ones
aren't cheap though.

Or couldn't you just mill out the circle with a smaller milling bit, so
that you end up with a disc that drops out when you finish the cut?

Cheers,
Steve

On Mon, Nov 27, 2017 at 4:17 PM, Rick Patton via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Hank,
> Have you checked into a mag drill yet?
> Rick
>
> On Sun, Nov 26, 2017 at 1:49 PM hank pronk via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> Hi All,
>> Is there such a tool that can bore a 6 inch dia hole in 1 inch thick
>> plate.  Some sort of milling machine tool, it needs to machine a precision
>> hole.
>> Hank
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