Klein Tools 59014 No.14 Step Drill Bit Single-fluted design eliminates skidding and makes for easier resharpening Laser-etched hole size are easy-to-read and permanent Anti-skid tip eliminates the need for center punching or pilot hole drilling for most sizes Drill multiple-size holes in thin sections of metal, plastic and wood using a single bit Works in most metals (steel, brass, aluminum, copper), as well as plastic and wood Works in most metals (steel, brass, aluminum, copper), as well as in plastic and wood Single-fluted design eliminates skidding and makes for easier re-sharpening Laser-etched hole sizes are easy-to-read and permanent Anti-skid tip eliminates the need for center punching or pilot hole drilling for most sizes Drill multiple-size holes in thin sections of metal, plastic, and wood using a single bit