Silver And Deming Drill Bit, Finish: Black Oxide, Point Type: 135 DEG, Size: 9/16 IN, Overall Length: 6 IN, Shank Diameter: 1/2 IN, Shank Type: Round, For Steel, Copper, Aluminum, Brass, Oak, Maple, MDF, Pine, PVC, Polycarbonate, Acrylic, ABS, Nylon And Composite Materials