3Pcs HSS Step Drill Bits Set - ShiningUU (4-12mm, 4-20mm & 4-32mm) Cone Cutter Hole Saw Drill Bit for Metal, Stainless Steel, Wood with Small Storage Pouch

• 【Package Includes】ShiningUU Step Drill Bits Set includes 3 precision sizes (4-12mm, 4-20mm, 4-32mm) – tailored for metal drilling enthusiasts. Paired with a portable fabric storage bag, it keeps tools organized for job sites, workshops, or DIY projects.
• 【Premium Material】This set delivers faster, smoother drilling through hard steel, aluminum, copper, and stainless steel sheets. Crafted from titanium-coated high-speed steel (HSS), these metal drill bits for hard steel resist wear and maintain sharpness.
• 【Easy to Use】Equipped with a hex shank, these step drill bits compatible with most drills and drill chucks – no extra adapters needed. Perfect as hole cutter drill bits, catering to both DIY beginners and seasoned professionals in plumbing or metalwork.
• 【Designed for Precision】These step cone drill bits create accurate holes with optimal speed, reducing material waste. Ideal for drilling into sheet metal, stainless steel, or other tough materials. Perfect for hole saw sets or precision metal fabrication tasks.
• 【Excellent Service】We stand behind our ShiningUU step drill bits with great quality service. If issues arise, contact our after-sales team anytime. Elevate your toolkit with premium metal drill bits that combine durability, versatility, and value for money.

Product Parameters Set Specifications: 3-piece step drill bit set (includes three sizes: 4-12 mm, 4-20 mm, and 4-32 mm) Material: High-speed steel (HSS), high hardness, wear-resistant Applicable Materials: Metal (including stainless steel), wood, and common boards Accessories: Comes with a portable storage bag for easy organisation and storage Application Scenarios Home DIY Scenarios: Need to drill holes in wooden panels to install hinges on a wardrobe? Use a 4-12mm drill bit to complete both the initial positioning and final hole diameter in one step, without needing to change drill bits; want to drill screw holes in a metal shelving unit? A 4-20mm drill bit easily penetrates thin steel plates, leaving clean, smooth hole walls. Small Workshops/Repair Scenarios: When processing stainless steel sink brackets, do you need to drill installation holes of different diameters at the same location? When repairing old furniture, facing complex structures with mixed materials (wood + metal), one set of drill bits replaces multiple tools, instantly lightening your toolbox load. Professional Workforce: Need to quickly drill holes in metal enclosures for electrical panel installations? Need precise hole enlargement for equipment part repairs? ShiningUU step drill bits' high hardness and stability ensure precise and reliable drilling every time, reducing rework risks and making professional tasks more hassle-free.