Diablo, 5 pack, 3 In. Metal Cut Off Disc, Thin Kerf. Diablo's Premium Metal Cut Off Discs Provide Superior Performance And Increased Productivity. Featuring A Premium Aluminum Oxide Blend, These Discs Cut Through Material Faster Than Other Cut Off Discs And Offer An Extra Long Cutting Life. Diablo's Thin Kerf Design Provides For A Thin, Fast Cut With Minimal Burr Formation. Unlike Other Bonded Discs On The Market, This Cut Off Disc Is A True .4 In. Design. Fully Reinforced For Use In Hand-Held Cut Off Work. Ideal For Use When Working In Hard To Reach Areas.