3pcs Step Drill Bits HSS 6542 Umbrella Drill Carbon Steel/Wood/Pv Board Chamfering Cutter Chamfer M2 16-30.5mm 6-20mm 3-14mm
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.