Nice! Sharpening a mower blade is much like sharpening a machete...but it has to stay balanced, so you can mostly just grind it on your bench grinder like your axe or whatever. Put a nail hanging out parallel to the ground in the bench (or a saw horse, whatever) and hang the blade from that. Whichever side falls down needs more metal removed. Works pretty good, but if you don't balance it...it vibes pretty good. I don't recommend that.
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