Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel or any other harder metal) HSS Titanium Coating: The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating 118° Split Point Tip & Spiral Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape more easily 50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally... Step Drill Bit - the perfect tool for expanding existing holes or creating new ones with ease! HSS Titanium Step Drill Bit M35 Cobalt Hex Shank Spiral Straight Groove Metal Hole Cutter Conical Stage Drill Cone Power Tools - 1420 5 Piece Spiral Step Drill Set ZELCAN Step Drill Bit Set 5pcs ZELCAN Step Drill Bit Set 5-Piece - Titanium Coated HSS, 1/4" Hex Shank, For Metal, Wood, Plastic Dewalt Multi Tool Spiral Flute Step Drill 50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally 50 sizes for versatility, enough for your DIY needs ZELCAN Step Drill Bit Set, 5PCS Four Spiral Flute Step Bits for Metal, 50 Sizes Titanium-Coated HSS Drill Bits with 1/4" Hex Shank for Stainless Steel Aluminum Wood Plastic 1K bought in past month Limited time deal Save 5% on 2 select item (s It features a unique design that allows you to create a variety of hole sizes using just one bit, making it incredibly versatile and cost-effective. Whether you're a DIY enthusiast or a professional, IRONANT step drill bit is an essential addition to your toolbox.