Diablo, 5" x 1/8" x 7/8", Type 27, Dual Metal, Cutting & Grinding Discs, Provides Superior Performance & Increased Productivity, Featuring Premium Aluminum Oxide Blend, Discs Cut & Grind Through Material Faster Than Other Discs & Extra Long Life, This All-In-One Disc Allows You To Cut & Grind Simultaneously, Fully Reinforced For Use In Hand Held Cut-Off Work, Ideal For Use When Working In Hard To Reach Areas.