Deere's blades have been engineered to provide optimal cut quality and durability. Nothing Runs Like a Deere and nothing performs like the original manufacturer supplied parts. We have mower blades for every size deck in Side Discharge, Mulching, and Bagging designs. Having a sharp set of blades provides a clean cut. Also, having the correct style of blade for mowing style, grass type, and soil condition can impact quality of cut.