#4 HSS Quick Change Hex Shank Step Drill Bit VAC4HEX

Size: #4, Material: High Speed Steel, Finish: Uncoated (Bright), Flute Length: 1-13/16, Overall Length: 2-29/32, Shank Size: 1/4, Shank Type: Hex, Cutting Angle: 135, Point Type: Split Point, Number of Flutes: 2, Cutting Direction: Right Hand, Number of Steps: 12 1/4" quick change hex shank. 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