RYOBI introduces the RYOBI 4-1/2" Masonry Cutting Wheel Set. Silicon carbide build for fast material removal and longer life. Will fit most 4-1/2" angle grinders. Able to cut through a variety of materials such as masonry, block, brick, and concrete. These Masonry Cutting Wheels are a consumable item. Included in this package is (3) 4-1/2" Masonry Cutting Wheel.