Can't help with what bench grinder, don't like them, too many horror stories. I buy a set of new blades every year. My dad sharpened his blades all the time and then he complained about the thin strip of grass the was not getting cut all because the distance between the blade tips just keeps getting bigger and bigger with every sharpening. Or he would complained about the vibration in the mower deck, blades out of balance, and then his spindles would go south. I guess for commercial mowing sharpening the blades may be the way to go. Just not for me and home use.
Need a bench grinder for sharpening mower blades
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Mower blade lengths are measured diagonally from cutting tip to cutting tip and every time you sharpen them the blade width gets smaller, hence a shorted blade. Especially with worn blades that have rounded tips and they all do depending on wear and sharpening.Can you explain that please? Properly sharpening a blade does not shorten it
Why didn't he just balance them?
Take a look at well used blades still on the mower. Turn two blades (three blade deck) so the tips are at their closest position to each other, you may need to spin one blade while holding the other. On correct new blades the tips will just miss each other. Put a new set on and do the same thing. If the old blades have been sharpen a lot the distance between the tips will be a lot further than the new blades.
As far as my father balancing the blades.....I have no idea. God rest his soul.
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