Say you’re a lawn mowing professional or just your regular average ol homeowner, but you’re extremely careful and never hit rocks or damage the blade in any way. The mower blades still get dull, with only blades of grass and grass is not a hard substance. How does something soft like grass, dull a lawn mower blade?
In: 92
Water in and on the grass is dulling the blades.
Water is not compressible. That means that when the spinning blade hits a water droplet, however small, a portion of the water at the impact site becomes as hard as a diamond.
These “micro diamonds” will quickly wear away everything, even diamond tipped blades.
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