Quick Answer: How Do I Know If My Mower Blade Is Dull?

How sharp should my lawn mower blade 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..

Will a dull mower blade kill grass?

Grass cut with a dull mower blade. Dull lawn blades can lead to lawn discoloration, lawn disease, portions of grass being pulled up during mowing, ragged-looking grass, or even the plant dying. Grass that is cleanly cut can recover more easily, which reduces the risk of disease.

Why are mower blades not sharp?

Yes, lawn mower blades need to be sharpened. A dull blade will pull and tear on your grass blades causing jagged tips. The dull blade stresses the grass and the damaged grass tips turn yellow. A sharp blade will cut cleanly which is healthier for the lawn, easier on you and your mower engine.

How does a lawn mower blade cut in the middle?

Streaking is usually caused by operator error or poor blade maintenance. Streaking can occur if the engine speed is too low. … Instead of cutting grass like scissors cut paper as a reel mower does, the rotary mower spins a horizontal blade around fast enough to cut the grass as it hits it.

How do I know if my lawn mower blade needs to be sharpened?

There are often signs that it is time to sharpen the mower blades.Dents or nicks in the mower blades.Uneven grass height after cutting.Grass blades look torn instead of sliced.Brown, frayed grass edges.

What does a dull lawn mower blade do?

A dull blade rips and pulls the grass blades, leaving ragged tears that both weaken the plant and promote fungal growth and other grass diseases. A sharp blade, on the other hand, cuts cleanly, allowing the plant to heal and recover quickly.

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.

How much does it cost to sharpen a lawn mower 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 do you sharpen a lawn mower blade without a vice?

The fastest way to sharpen a lawnmower blade is with a bench grinder. Wearing protective eyewear, earplugs, and work gloves, grind the edge of the blade against the spinning wheel. It’ll be loud and you’ll see sparks, but you’ll be able to sharpen the blade in a matter of a few minutes.

How long should a mower blade last?

100-200 hoursWell as indicated earlier, most mower blades will last about 20-25 hours until they should be sharpened. But in terms of overall lifetime, most blades last at least 100-200 hours total, and some higher quality ones can last even longer, as much as 400 hours.

How many years does a lawn mower last?

eight to 10 yearsThe average lawnmower lasts eight to 10 years with proper maintenance and care. A lawnmower that is not maintained may last one-half that time.

Are my mower blades dull?

Inspecting Your Blades Look closely for nicks, dents, and bends. Also, inspect your lawn at this time to look for signs of a dull blade and lawn damage. Each time before you mow your lawn, be sure to clear any sticks or rocks that can damage your lawnmower or the mower’s blade.

How do you know when to replace your lawn mower blade?

After a visual inspection of your mower blades, you will be able to tell if your blades have any nicks and dents. Blade erosion can happen over time due to yard debris, so be sure sure to inspect the thickness of the mower blade. For the average homeowner, a good rule of thumb is to replace your mower blades annually.

What is the best lawn mower blade sharpener?

Best Lawn Mower Blade Sharpeners: ReviewsOregon 88-023 Professional 1/2 HP Lawnmower Blade Grinder. … Work Sharp Knife & Tool Sharpener. … Smith’s 50603 Mower Blade Sharpener. … American Lawn Mower Company SK-1 Sharpening Kit. … Funvolution Lawn Mower Blade Sharpener. … Grizzly Lawn Gear Lawn Mower Blade Sharpener. … Magna-Matic MAG-9000 Professional Lawn Mower Blade Sharpener.

Do brand 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.

Do you really need mulching blades?

Mulching blades are an excellent choice for use on lawns that receive a mowing every three to four days. Using mulching blades on overgrown grass can result in clogging under the deck and piles of grass on the cut lawn. Mulching is also an environmentally friendly way to deal with grass clippings.