DRILL AMERICA STE1-3SET 3 Piece HSS Black & Gold Step Drill Bit Set (Sizes No 1

California Proposition 65: This product contains a chemical known to the State of California to cause cancer.
California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Step drills have single radial concave flutes to create a perfectly round hole in metal, plastic wood and other thin materials without center punching. Constructed of industrial grade high-speed molybdenum steel, heat-treated and temperature for long life. Self-starting tip. No center punching needed. Automatically deburrs top side of hole. Ideal for steel, copper, aluminum and other thin materials. They are Black and gold surface treated.