Diameter: 20mm ; Thickness: 2mm 3mm 4mm 5mm 6mm 8mm 10mm 12mm ; Shank Diameter: 6mm ; Grit: 150/400 ; Quantity: 1pc . Using high-quality emery material, it has high hardness, durability and is not easy to wear . The correct use method: electric drill speed 3600 rpm, bench drill and machine speed in 6000 ~ 10000 . Durable, safe, efficient, and easy to install on rotating tools . Brand new and high-quality . Diameter: 20mm
Thickness: 2mm 3mm 4mm 5mm 6mm 8mm 10mm 12mm
Shank Diameter: 6mm
Grit: 150/400 ; Quantity: 1pc .