What do you sharpen lawn mower blades with?
Christopher Snyder
Updated on June 21, 2026
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In this way, what tools do I need to sharpen a lawn mower blade?
To sharpen your lawn mower blade, you'll need a socket or wrench to fit the blade nut. Tough nuts may call for a breaker bar and/or a penetrating lubricant. You'll also need two clamps, a block of wood and, of course, an angle grinder with a metal grinding blade.
Also, can you sharpen blades while still on mower? Although you can probably do an okay job sharpening them while on the mower, there is no way for you to balance them on the mower. Even a small vibration from them can really wear things out on a mower over time. Take them off and sharpen them, that's the only way you can see if the blade is balanced.
Similarly one may ask, when should I sharpen my mower blades?
So in conclusion you don't need to sharpen your blades every time you cut your grass, however you need to do it more often than you're probably initially thinking, and a good rule of thumb is every 25 hours of grass cutting time go ahead and invest in putting a nice clean sharp mowing edge on your blade.
What is the best lawn mower blade sharpener?
At a Glance: Our Recommendations for Best Lawn Mower Blade Sharpener:
- Magna-Matic MAG-9000 Lawn Mower Blade Sharpener (Top Pick)
- Oregon 88-023 0.5 HP Lawn Mower Blade Grinder (Top Rated)
- Work Sharp WSKTS-W Knife and Tool Sharpener (Editor choice)
- Smith's 50603 Mower Blade Sharpener.
Does Ace Hardware sharpen lawn mower blades?
Our local Ace hardware store does lawnmower blade sharpening. They also do chainsaw sharpening. You might want to check around, locally, to see if a neighborhood hardware store will do it.How much does it cost to sharpen a lawnmower blade?
The cost to sharpen and balance a lawn mower blade is $9.95 when the blade is brought in off the machine and $19.95 when it is brought in on the machine.How sharp should lawn mower blades be?
How Sharp Should Your Mower Blade Be? Mower blades should be aggressively sharp, but not as sharp as a razor's edge. You should be able to touch the blade with your hand without getting cut. Contrary to popular belief, a lawn mower blade with a razor sharp edge will not cut grass better.How do you sharpen a lawnmower blade with a drill?
- remove blade from mower. Remove the Blade. Disconnect the spark plug.
- Use a File. Put dull blade in a vise and sharpen it using a file.
- use drill and sharpening stone on mower blade. Use a Drill and Stone.