Reply by Wildwood

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Posted on I've got the sharpening "blues"...

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2689 posts in 2584 days

#1 posted 10-20-2014 09:41 PM

You are pressing too hard, try holding the Vari-grind jig with two hands while sharpening instead of jig and tool handle. I do not quench my tools in water when resharpening tool does not get that hot where burns my fingers. I do not quench my tool in water when redoing bevel angle just air cool, tool does get hot but never blues.

People smarter than I say quenching HSS in water changes structure of HSS. People do it all the time so have no idea who is correct. I stopped quenching tools years ago. I stopped over heating my tools years ago too. Have a six inch 3400 RPM grinder been using for past twenty years. You have a good grinder so back off on the pressure while sharpening or regrinding bevels!

I use a medium 46 grit K-hardness to redo bevel angles or repair damage tool (don’t ask). I go right from the grinder to turning, will resharpen on an fine 80 grit k-hardness wheel.

Doug Thompson had a great video on sharpening no longer on the web but there are still some great one still around.

-- Bill

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