3Pcs High Speed Hole Drill Bits Heavy Duty Hole Cutter Fast Drill Step Drill Bit Set Metal Drilling

Label:Yes Type:Step Drill Bit Set Material:Bearing steel Size:65mm(2.56in),67mm(2.64in),77mm(3.03in),101mm(3.98in) Color:gold,black Package includes:3Pcs Step Drill Bit Set

HSS Titanium Coating: The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel & wood)