Step Drill Bit Natural Color Triangular Spiral 9-step 4-20mm Plastic Bag Electric Drill Anti-wear Wall Punching / Steel Drilling
Highlights What is Step Drill Bit · Step drill bits can be used with metal and wood. · Useful for drilling pilot holes in woodworking and sheet metal-based projects. · Allows drilling holes of multiple sizes with same drill bit; can be used to clean away waste material in holes.