Carbide Bur,Cone,1/4in,Length Cut 1in 1/4 in, Head Dia. 1/4 in, Length of Cut 1 in, Overall Length 2 in, Trade Number SM-3, Included Angle 10 Degrees , Abrading Application Metal Removal, Coating Bright (Uncoated), End Type Pointed End, For Tool Type Die Grinders, Pencil Grinders.