Step Drill Bit HSS Step Drill Bit for Multiple Hole Drilling Cone Drill Bits Stepped Up Bits 13 Step Sizes from 5-35MM Hole Expander for Wood and Metal

Step Drill Bits: within 4mm/0.16 inch (Iron Plate, Copper Plate, Aluminum Plate); within 5mm/0.2 inch (Wood, PVC sheet, Insulation Boards). Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc. Convenient 13-Step Sizes: With clear size marks on the cutting head, our step drill offers 13-step sizes ranging from 5mm to 35mm. High Quality HSS Material: Our step drill bits are made of high-speed steel (HSS) with a titanium coating, ensuring exceptional durability, heat resistance, and corrosion prevention. Versatile Drill Bit: This multifunctional spiral drill bit fits securely in most pistol drills, drill presses, and other hand power tools. Use this versatile small cone-shaped drill bit for metal and wood projects at work or home. Wide Range of Applications: Our step drill is versatile and suitable for cutting non-ferrous metals, plastic, and more. It is an excellent choice for sheet metal working, whether you're a professional or a DIY enthusiast. Please note that it is not recommended for use with harder metals like steel.