The old blade torn the grass and was nicked and worn. The new 3 in 1 Craftsman blade is sharp and makes a nice clean cut. It also mulches the grass into tiny pieces. Wonderful.
I replaced my blade with this identical one and observed the blade out of the wrapping was particularly dull on one edge (rounded) and had a few nicks, but not as quite as dull on the other. I've replaced blades before on non-Kenmore mowers but this is by far the dullest and worst performing "new" blade I've purchased. Irritated by having to mow over the same areas 2-3 times because of poor cutting ability. It was like I never changed blades at all. The one I replaced was 2 years old. Poor quality control.