#4 HSS Black & Gold Step Drill Bit STE4

Size: #4, Material: High Speed Steel, Finish: Black and Gold, Style: Step Drill, Flute Length: 1-13/16, Overall Length: 2-29/32, Cutting Angle: 135, Point Type: Split Point, Number of Flutes: 2, Cutting Direction: Right Hand, Number of Steps: 12 Black and gold surface treated. Single bit can be used for drilling a wide range of hole sizes in metal, plastic and wood. Exlusive single radial concave flute crates perfectly round holes in metal, plastic wood and other thin materials without center punching. Contructed of industrial grade high-speed molybdenum steel, heat-treated and temperature for long life. No center punching needed. Automatically deburrs top side of hole. Ideal for steel, copper, aluminum and other thin materials.