Carbide Bur,Pointed Cone,3/8,1/4 Shank 1/4 in, Head Dia. 3/8 in, Length of Cut 5/8 in, Overall Length 2-3/8 in, Trade Number SM-4, Included Angle 28 Degrees , Abrading Application Metalworking, Surface Milling, Narrow Contouring, Coating Bright (Uncoated), End Type Pointed End.