According to home and garden experts, the blades in your mower should be about as sharp as a butter knife, and an angle of about 30 degrees. You should not get a bruise if you touch the edge. If you want to get the most out of your blades, you’ll need to learn how to use them properly.

Explained in video below

Why are new mower blades not sharp?

It really depends on its condition, a mower blade that cuts a small yard will last longer. New yards usually have rocks, stones, and debris that impacts the blade causing it to wear out faster.

What angle should I sharpen my lawn mower blade?

The factory makes the lawn mower blades with a specific angle. As you grind your blades, you should keep this angle. 30-35 degrees is the most common angle for lawn mower blade. It is important to keep this angle in mind when sharpening your mower blades. The angle of the blade should not be too steep or too shallow.

If your blade is too deep, it will not cut the grass as well as it should. Too shallow of an angle will result in a blade that is not sharp enough to get the job done. It is also a good idea to make sure that the blades are sharpened at least once a year.

Are new mower blades sharp enough?

No, it’s not necessary to sharpen brand new lawn mower blades. You can attach the new blade to the existing blade by removing the old blade from the mower and then attaching it to the new blade.

How do I know if my mower blade is dull?

A dull blade can make your lawn appear yellow, brown and raggedy. A dull lawnmower blade can pull up portions of the grass because it pulls on the entire plant instead of slicing it up. If you have a lawn mower that has a blade that is dull, you may want to consider replacing it with one with a sharper blade.

Should I sharpen both sides of mower blade?

If you want the longest- lasting edge on the blade, always sharpen from the top side of the cutting edge. You will feel the file bite into the wood, but it won’t cut through it on the push stroke. Use the file to smooth out the edges.

You can do this by using a sharpening stone, or you can use a sanding block. I prefer the latter, because it’s easier to get a smooth, even finish. If you don’t have a stone handy, just use sandpaper or a fine-toothed file.

Should mulching blades be sharp?

The blades of the mulch are supposed to be sharp to cut through the grass and other debris. Attach the blades to the lawnmower’s deck by cutting through the grass with a file. Sharpening the blades twice a week will keep them sharp and prevent them from dulling.

How many times can you sharpen mower blades?

Most home owners only need to sharpen their blades twice a season. You might need to sharpen your blades more often if you mow over sticks or rocks.

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