Reply by Loren

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Posted on Sharpening Planer Knives

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10477 posts in 3852 days

#1 posted 07-15-2014 11:00 PM

Generally flat ground. 30 degrees I think.

I sharpen my own on a Makita waterstone grinder. It works
well for prepping chisels and plane irons, sharpening
knives too. I use a 1000 grit wheel only most of the
time, though I have a coarser wheel. The 1000 grit
wheel is good enough to make an edge that will
shave hair off your arm. I use a nagura stone to
remove glazing and lots of water.

There are other ways of course to sharpen planer
blades. If you have access too a mill I think it could be
done with some basic fixturing. Make sure the
blade is held flat while grinding as when they
are loose they tend to be a bit curved and if not
clamped flat this will result in an uneven edge.

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