Bona Diamond Abrasive Discs Deliver Consistent Scratch Patterns Across The Entire Floor, Creating The Best Surface For Optimal Adhesion. These Revolutionary Discs Prepare All Polyurethane-Finished Floors For Recoating, Including Hard-To-Abrade Alox And Ceramic Prefinished Surfaces. Engineered To Last 12 Times Longer Than Screens And Other Inter-Coat Abrasives, They Provide Exceptional Durability And Value. Their Unique Construction Allows Them To Conform To The Floor, Ensuring Complete Abrasion And Smoothing For A Flawless, Scratch-Free Finish On Raw Wood Or Recoats. Each Set Covers 4,000 To 6,000 Square Feet During Inter-Coat Abrasion, Reducing Downtime And Replacement Needs. With No Visible Swirl Marks, A Consistent Scratch Pattern And Improved Adhesion For Recoating, Bona Diamond Abrasives Set A New Standard In Surface Preparation.