Clean and Accurate Drilling: The step design provides gradual and controlled drilling to prevent cracking or splintering of wood or metal surfaces. Each bit delivers smooth, clean holes without the need for reaming. Titanium Coating: Each drill bit is coated with titanium to enhance durability and reduce heat buildup, ensuring longlasting performance, increased cutting efficiency, and smooth drilling through various materials. Strong Steering Steel Construction: Crafted from steering steel, these bits offer exceptional strength and stability. They resist bending or breaking under pressure, making them reliable for heavyduty drilling applications. Versatile Size Selection: This twist and step drill bit set includes 6 different sizes, allowing you to tackle a wide range of drilling tasks in metalworking, woodworking, and general DIY projects with precision. Practical use scenarios Metalworking: Drill clean, precise holes in aluminum and steel sheets with minimal effort and reduced risk of burrs. Woodworking: Create smooth, splinter holes in hardwoods and plywood for fixtures or hardware installation. General DIY: Use for mounting electrical boxes, furniture assembly, and other common home improvement tasks that require accurate hole sizes.