These special abrasive wheels work quickly to polish granite chamfers or straight edges up to 15mm (5/8”) and marble chamfers or straight edges up to 20mm (3/4”) easily. Well suited for these smaller bevels or straight edges, the Alpha® Edgecrafter Round Abrasives are ideal for common polishing applications performed by the Alpha® Edgecrafter. On smaller bevels up to 5mm, these round abrasives can be successfully used without any grinding or shaping wheel.