Vitrified Mounted Point Abrasive Material Ceramic Bond Type Vitrified Overall Dia 7/8 in Overall Thickness 2 in Shank Dia 1/4 in Grit 80 Shape A11 Primary Material Application Carbon Steel Stainless Steel Shank Length 1 1/2 in Specification 3NQ80-OVS Operating Speed - Maximum 25 420 RPM Series Quantum 3NQ Grade Medium Compatible Tool Type Die Grinder Flexible Shaft Grinder Straight Grinder Pencil Grinder Drills