Gauging Drill Kit; Minimum Drill Size #19; Maximum Drill Size #60; Increment Drill Size #1; Drill Sizes #19 to #60; Shank Type Straight; Material High Speed Steel; Process Pressure Bonded; Number of Drills 42; Case Material Plastic; Includes 1/4 Inch Hex Handle; Application Gas Orifice, Burner, Carburetor Jet