Coatings Eraser Mastic Removal Tool uses diamond coated segments (blades) to grind through hard-to-remove coatings without the use of heavy grinding equipment or dangerous chemicals. Removes mastic, carpet or tile adhesive, thin-set and thin mil coatings, and other difficult to remove coatings . Mounts to any standard floor buffer or auto scrubber. Apply water to eliminate dust and to flush debris away. Blades are replaceable.Replacement segments (blades) for the 16”Coatings Eraser Mastic Removal Tool come in sets of 10. Easily replace worn or used segments with a quick turn of the two screws, minimizing downtime.