25PCS 4-1/2"x 7/8" Disco abrasivo in fibra di ossido di alluminio foro centrale 120 grana
Grit Guide. 24, 36, 40 Grit Coarse Grade: For extra heavy deburring or grinding. Calcined Aluminum Oxide - 40% harder grain for 3X longer life vs regular AO discs. Abrasive Material: Calcined Aluminum Oxide Abrasive.