Walter Finishing Drum, Silicon Carbide, 4 1 4"Dia jaw 4 in of durable prisync722 of durable with a load rating of up to 1200 lbs Item Finishing Drum Grit 80 Grade Medium Abrasive Material Silicon Carbide Abrasive Type Coated Non Woven Max RPM 3800 Series Two In One Abrasive Grit 80 P80 Abrasive Grade Medium Backing Material Cloth Non Woven Grade Medium Abrasive Type Grade Coated Non Woven Medium Arbor Hole Type Threaded Connector Type Threaded Hole Maximum Operating Speed 3 800 RPM Abrasive Type Grade Grit Coated Non Woven Medium 80 P80 Backing Material Type Cloth Backing Material & Wt Cloth Abrasive Type Grit Coated Non Woven 80