Re: [CAD_CAM_EDM_DRO] Re: Flat Holes

Which is a good reason to grind/file your own flat bottom cutting tools made
from drill bits. They are available "everywhere", are cheaper than end
mills and will do just as good a job.

You can even grind the drills to make combination drill and counter bore in
one operation.

Smoke

> And the next valuable piece of information you will learn is this:
>
> Home Depot doesn't sell serious tools like end mills.
>
> Try MSC (www.mscdirect.com)
>
> (Actually I take that back... Home Depot may have some little end-mill
> like burs sold as dremel tool bits, but these will be too small for
> the 6-32, you might be able to do the 4-40 in multiple passes. They
> might have a counterbore though. Or you could get a cheap drill bit
> to modify. You can abuse wood router bits for aluminum, not sure I'd
> recommend it for steel)
>
> Chris
>
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