Quick Answer: 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.

Should lawn mower blades feel sharp?

As you can see, there is no single answer for how sharp the mower blade should be, and lawn owners need to take into consideration the terrain of their yard. If you keep your blade at the level it was at when you purchased it and remember to sharpen the mower blade twice a season, your mower should be just fine.

Can you sharpen mower blades without removing them?

There are few different ways to sharpen lawnmower blades, including using a bench grinder, hand file, rotary tool, or angle grinder. … But, depending on the design of your mower, you might be able to sharpen the blade without removing it, which will save a considerable amount of time.

Are mower blades sharp when you buy them?

Do New Lawn Mower Blades Need to Be Sharpened? If your lawn mower is brand new, then there won’t be any need to sharpen the blade. During the manufacturing process, mower blades are always sharpened, and new mowers come with sharp blades from the factory.

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How much does it cost to sharpen lawn mower blades?

Depending on the type of your mower, you can expect to pay anywhere between 20 dollars to 60 dollars. If it’s a reel lawn mower you might not even need to take the blades off the mower and sharpen them while they’re attached.

What does a dull mower blade do?

Blade Pulls Up Chucks of Grass or Dirt



Rather than cleanly slicing through grass, a dull blade can not only pull clumps of grass from your lawn, but some dirt as well. The blade should always slice the grass, not pull.

How often should you change your mower blade?

For the average homeowner, a good rule of thumb is to replace your mower blades annually. Sharpening mower blades on a regular basis will prolong the life of your blades. Be sure to take protective measures if you sharpen your blades at home – wear protective gear and disconnect the spark plugs.

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