Large Set 6-60mm HSS Step Cone Drill Bits with Spiral Flutes in 12 Sizes, Cobalt Cone Drilling Tool, Hole Expander, Metal Sheet, PVC Sheet - DC18

General description High-speed steel (HSS) step cone drill bits with titanium coating, designed for durability and efficient cutting through various materials including steel sheets, aluminum, copper, plastic, and wood. This large set includes sizes ranging from 6mm to 60mm, making it ideal for both DIY enthusiasts and professionals. The drill bits automatically deburr holes while drilling, ensuring a clean finish. Technical specifications Material: High-speed steel with titanium coating Drill sizes graduated: 12 steps (6 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm) Usage Perfect for home repairs and light jobs Suitable for drilling holes in plastic, aluminum, copper, and various types of sheet metal Other information Features dual cutting blades for faster and smoother cutting Advanced dual spiral groove design enhances performance and extends bit life Laser etched measurements for improved step visibility