Feature Highlights:1. All-in-One Hole Cutting Set: This single set replaces the need for 50 individual drill bits, covering a wide range of sizes for all your projects.2. Durable & Efficient Design: Made from high-speed steel (HSS) with a titanium coating, these bits are built to last. The coating reduces friction and heat, allowing for smoother, cooler drilling.3. Self-Starting & Auto-Deburring: No need for a pilot hole—just start drilling. The bits are designed to automatically clean up the edges as you go, saving you an extra step.4. Works on Various Materials: Effortlessly cut clean holes in steel, brass, wood, plastic, and more.5. Secure & Organized Storage: Comes with a protective padded aluminum case to keep your bits safe, organized, and ready for use.Product Details:This HSS Steel Step Cone Drill Bit Set is your go-to solution for precise hole cutting. The titanium-coated construction ensures durability and reduces wear. Its self-starting tip and auto-deburring function make drilling quicker and cleaner. Ideal for professionals and DIY enthusiasts, it handles multiple materials with ease. The set is neatly housed in a sturdy aluminum case for convenient storage and portability.Specifications:The set includes 5 multi-step drill bits:- 1/4’’ to 1 3/8’’ Drill Bit: 10 Steps (1/4’’, 3/8’’, 1/2’’, 5/8’’, 3/4’’, 7/8’’, 1’’, 1 1/8’’, 1 1/4’’, 1 3/8’’).- 3/16’’ to 7/8’’ Drill Bit: 12 Steps (3/16’’, 1/4’’, 5/16’’, 3/8’’, 7/16’’, 1/2’’, 9/16’’, 5/8’’, 11/16’’, 3/4’’, 13/16’’, 7/8’’).- 1/4’’ to 3/4’’ Drill Bit: 9 Steps (1/4’’, 5/16’’, 3/8’’, 7/16’’, 1/2’’, 9/16’’, 5/8’’, 11/16’’, 3/4’’).- 1/8’’ to 1/2’’ Drill Bit: 13 Steps (1/8’’, 5/32’’, 3/16’’, 7/32’’, 1/4’’, 9/32’’, 5/16’’, 11/32’’, 3/8’’, 13/32’’, 7/16’’, 15/32’’, 1/2’’).- 3/16’’ to 1/2’’ Drill Bit: 6 Steps (3/16’’, 1/4’’, 5/16’’, 3/8’’, 7/16’’, 1/2’’).Package Includes: 5 x Drill Bits, 1 x Aluminum Case.