Spanish buyer note:If your address contains the following zip code, please do not select Spanish warehouse. The zip code starts from /51 /52/ 07 /35 /38.Overseas warehouse cannot be delivered. Otherwise, we will ship the order from China warehouse. HSS Straight Flute Taper Step Drill Bit with High Speed Steel Hex Shank Double Fluted Drill Bit Wood Hole Cutter Drilling ToolsFeature: The two-slot stepped tip design is optimized for high-speed cordless drilling, providing greater speed and control. The laser engraved mark can be easily stopped at any size of hole; The quick tap tip provides fast, accurate starting and generates less heat, resulting in longer drill tip life. Versatile: Ideal for metalworking, step drills are suitable for cutting metals such as stainless steel, plastic, copper, and aluminum, as well as other materials such as wood and plastic. Industrial quality: Clog-free, optimized for high-speed cordless drilling. It features a dual-slot design that's 2x faster than the full-time competition, lasts 4x longer, and has 50% more holes for each battery charge. Ideal for drilling large and small diameter holes in steel and plastic. Specification: Specifications: 7/8 to 1-3/8" with 3/8" Hex Shank Size: 3/16", 9/32", 3/8", 7/16", 17/32", 5/8", 11/16", 25/32", 7/8", 29/32", 31/32", 1", 1-1/16", 1-1/8", 1-5/32", 1-7/32", 1-9/32", 1-5/16", 1-3/8" Material: HSS M2Surface Treatment: NitridingShank Type: 3/8 Hex Shank Length: 88mm/3.46inNote: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow 1-2cm measuring deviation due to manual measurement.1 X Step Drill Bit