Vitrified Mounted Point Abrasive Material Aluminum Oxide Bond Type Vitrified Overall Dia 1/2 in Overall Thickness 1/2 in Shank Dia 1/8 in Grit 60 Shape B121 Primary Material Application Carbon Steel Shank Length 1 1/2 in Specification 38A M Operating Speed - Maximum 62 420 RPM Series Gemini 38A Grade Medium Compatible Tool Type Die Grinder Flexible Shaft Grinder Straight Grinder Pencil Grinder Drills