Find great deals on eBay for Lawn Mower Blade Sharpener in Lawnmower Parts. All American Sharpener 5000 Kit with Grinder for Standard Mulching Mower .
Mulching blade design includes an upward bend that creates lift inside the mowing deck. This lift is what makes longer grass clippings swirl around inside the deck so that the cutting portion of the blade shears them several times before the clippings fall into the lawn.
Mulching blades may have longer or curved cutting edges, and you may need several types of files to sharpen them. In some cases, you may have to resort to a 4-1/2-in. angle grinder to sharpen mulching blades. If your mulching blade is too difficult to sharpen, take it to a hardware store or a blade sharpening service.
Lawn mower blade sharpening is a complex process. To do it right you'll. Virtually all of them have a special shape, for better mulching and ejection of grass.
Is it possible? I'm sick of buying new ones at $25 a pop. I keep trying to use a vice and file to sharpen the leading edge of the one I have now.
Consistently sharpen lawn mower blades in 1-2 minutes and maintain a 30 degree angle on every blade. Dial-in cutting edge angles from 25-45 degrees in 5 degree increments, another industry first. The only sharpener in the industry that can keep the same angle on curved edge mulching blades.