Primary function is to cut grass, with different blade types suited for different conditions.
Mulching: Mulching blades have teeth to chop clippings into smaller pieces.
Bagging: High-lift blades are used for bagging clippings, as their design creates a strong updraft to throw the clippings into the bag.
Matching to your mower: Always check your mower's manual to ensure the blade's size, shape, and center hole are compatible with your specific mower.