Rotary lawn mower blades, no matter how sharp they may be, slash the
grass, gives a ragged cut.Reel type blades cut the grass, similar to
scissors.That is why most golf courses and people who want the best
looking lawns use reel type lawn mowers.Cut a blade of grass with your
scissors and compare that with a blade of grass which was cut with a
rotary lawn mower blade.You can see the difference.String trimmers are
the worst of all.
cuhulin