4-32mm Step Drill Bit Natural color Triangular Spiral 15 step Plastic Tube Packaging 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.