General description The 5pcs Step Cutter set includes precision drill bits designed for professional use, featuring a high-quality aluminum case for secure storage. Made from durable HSS steel and coated with titanium, these bits are engineered to reduce friction and heat, ensuring efficient drilling in various materials. Technical specifications Material: HSS steel with titanium coating Includes: 5 standard drill bits that replace 47 individual sizes Hex shank: 1/4 inch quick release Centering punch: Impact-resistant alloy steel Blade design: Double-edged for faster cutting Three-sided valve stem to prevent slipping Usage Ideal for drilling holes in steel, brass, wood, plastic, and more Automatically deburrs holes to maintain a clean drill Convenient for positioning before drilling and breaking glass in emergencies Other information Protective packaging includes a packing insert to prevent damage during transit Centering punch features a deeply knurled surface for slip-free control