Makita Lawn Mower Blade (191D52-7) installs quickly and easily with one-bolt installation. It is engineered to cut cleanly and create fine clippings to help promote lawn health. The lawn mower blade tilts toward the front of the mower to prevent double cutting, providing improved run time. This is a direct replacement for the original lawn mower blade. Makita 2 Edge Mower Blade 530mmSuits DLM531 and features an easy one bolt installation3-in-1 mower blade for mulching, bagging or side dischargeTilts toward the front of the mower when installed preventing double-cutting for improved run timeCuts cleanly and creates fine clippings to help promote lawn health