Step Drill Bits

Our Step Drill Bits, often referred to in the trade as unibits or multi-step drills, are the ultimate tool for electricians, HVAC technicians, and fabricators who need to drill holes of varying diameters without stopping to change tools. Manufactured from premium high speed steel (HSS), these bits feature a double-fluted or spiral flute design that ensures clean cutting edges and faster chip removal in sheet metal, plastics, and mild steel.

Each bit offers up to 10 distinct hole sizes, providing the efficiency required for fast-paced industrial and DIY projects. While our HSS options are a general purpose staple for thin materials, for applications involving thicker stainless steel, we recommend using our cobalt drill bits or specialized countersinks. 

Your Nationwide Distributor for Step Drill Bits

Fasteners Etc., Inc. is a veteran-owned business and a premier nationwide distributor of professional-grade step drill bits. Based in Illinois, we serve contractors and industrial facilities across the United States with a comprehensive selection of cutting tools designed for efficiency and long-term durability. Our heavy duty HSS multi-step drills are the ideal solution for precision work in sheet metal and other thin materials where a standard jobber bit might cause deformation. We are committed to providing fast shipping, competitive volume discounts, and exceptional technical support to our customers nationwide.

Ready to Order?
If you have questions about specific hole sizes or need help selecting the right bit kit for your application, please contact our sales team today. For large-scale commercial bids or bulk industrial requirements, you can request a quote to receive tiered pricing tailored to your project.