No already sharpened with factory bevel.
The blade is universal & it is supposed to come with a washer kit so the blade will fit different model mowers. The mowers that the blade will fit should be listed on the blade itself.
Hello CR, unfortunately we do not have information regarding Lawn Boy units. MTD did not manufacture them. You can get in contact with Lawn Boy directly at 1-800-526-6937. Thank you for your question!
Don't know. It pretty much a universal fit
Unless it has been used I don`t see why not.
Yes, this fits with Roybi 20” 40v since the product is universal.
No, this wont fit a Lawn Hog MM575 20inch corded walk behind
Yes, it fits with Yardman mower.