06-20-2012, 08:01 PM
(This post was last modified: 06-20-2012, 08:16 PM by Sunset Machine.)
(06-19-2012, 09:46 PM)PixMan Wrote: It may be a little too hard for a HSS tool to bore it.
"Machined from castings". Cast iron can be hard, maybe it should be tested with a file before getting in too deep. If it turns out to be good machinable cast iron, I'd like to also suggest using an existing collet with some length-wise chalk marks to get that taper just right. Lacking sine-bars and grinders and stuff, it's just a thought. Old school.
And yes, what's there pretty rough. I don't even see a taper.