Harold & Susan Vordos scribed in
:

good idea when you have the necessary clearance. I hand grind
parting tools from 1/2" square HSS. Think of the amount of stock
that gets removed! It's a sad moment when I break a new one when
parting, and it does happen. :-(

Harold, have you tried an angle grinder for the roughing when you're
taking so much off? I'd go with a 4.5" wheel, 1mm thick. that's the
fastest cutting wheel you'll ever use as it has to remove so little
metal to do it. The ones I have now are 1.6mm, is that 1/16"?
also nice, but the 1mm is faster.

in fact, within a day or two I'll be using mine to modify a 2 flute
endmill (homemade from O1 toolsteel) that needs to cut a little
deeper. I'll be keeping it cool so I don't need to reharden and
resharpen as it is the right size right now.

swarf, steam and wind

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