A Cutting Direction: Right Hand , Dimension Type: Fractional Inch , Material: High Speed Steel , Number of Pieces: 15 , Point Angle: 135 Degrees , Shank Dia.: 1/16, 3/32, 1/8, 5/32, 3/16, 7/32,1/4",9/32",5/16",11/32",3/8",13/32",7/16",15/32",1/2" , Sizes Included: 1/16, 3/32, 1/8, 5/32, 3/16, 7/32,1/4",9/32",5/16",11/32",3/8",13/32",7/16",15/32",1/2"