Diablo 4-1/2 In. Diamond Continuous Rim Cut Off Discs For Masonry. Diablo's Diamond Continuous Rim Masonry Cut Off Discs Provide Cleaner And Precise Cuts In Granite, Marble, Porcelain And Tile. These Diamond Rimmed Discs Deliver Up To 60% Smoother Cuts Versus Standard Diamond Cut Off Discs. The Disc's Industrial-Grade Diamonds With Hardened Disc Body Delivers Lasting Durability And Maximizes Cutting Quality In Hardened Materials Even In Extreme Applications.