Question: are new lawn mower blades pre sharpened?
Answer: Do Brand New Mower Blades Need To Be Sharpened? No, most new mower blades do not need to be sharpened. ... Don't worry about sharpening a new mower blade. But if you're really concerned, then before sharpening it just mow a small, less-visible part of your lawn and look at the grass blades afterward.