Tips for blade sharpening, how do ya’ll do it?

slomo

Lawn Pro
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Jul 14, 2019
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Finally went to the dark side. 4.5" angle grinder with a 120 grit flap wheel on low revs. Don't want to remove a ton of material. Balance with a precision food scale.

Had to do something with 5 mowers in the garage. Hand file is still my fav.
 

MParr

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4.5" angle grinder with a 40 grit flapper wheel. You will get the hang of it. A nail in a tree or a cheap cone balancer is all you need to balance them.
 

Tiger Small Engine

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Don't worry about it. Just a mower blade.
Keeping the angle consistent along the length of blade is one of the most important aspects of sharpening a mower blade correctly. I see homeowners rounding the blade all the time. You should be able to look at the blade edge that is sharpened and see no difference in the pattern.
 

Telesis

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No hate intended but I have to respectfully disagree with the assertion that the blade should be like a knife. It's well documented on the inter-webs as to the reasons why too sharp is not preferred so I won't repeat them here. A quick search will answer why. Suffice it to say, 'butter knife' sharp is preferred. For me, a 60 grit flapper on the angle grinder does a great job and works good on all blades, no matter the contour. You do you!
 

GrumpyCat

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"Too sharp" will soon become "butter knife sharp". I'm not going to worry about it, but am not going to break out the whetstone to be able to shave with my mower blades.
 
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