DOVAMAN 5PCS Step Drill Bit Set, 50 Sizes HSS Bits, Titanium Coated, Automatic Center Punch, 118 X Shaped Split Tip, w/Aluminum Case, Bits for Metal, Wood & Plastic STD06A

Wide Size Range: Drill effortlessly across 47 different hole sizes, from 3/16'' to 1-3/8'', using just 5 bits. Each bit includes 5 to 12 marked steps, allowing fast switching without changing tools. Perfect for DIYers, electricians. Premium HSS Material: Crafted from high-speed steel (HSS) and coated with durable titanium, these bits offer superior hardness, reduced wear, and extended cutting life. The 118° X-shaped split point enhances precision, preventing walking and improving start speed. Quick-Cut Dual Blade: Dual-fluted spiral design ensures smooth and clean drilling by quickly clearing chips and reducing friction. Achieve clean, burr-free holes in metal, wood, or plastic with minimal effort and consistent results. Secure & Universal Fit: All bits feature a standard 1/4" hex shank for a tight grip and quick bit changes. Fully compatible with most cordless drills, impact drivers, and bench drills – ideal for sheet metal, aluminum, insulation board, and more. Complete Kit: Includes an automatic center punch for accurate starting and an aluminium case with a clear size index for neat storage and easy access. Keeps your tools organized and ready for any job.