Step Drill Bits Nylon Bag Packing 3pcs HSS Straight Grooved Core Cone 1/4 Hex Shank 4mm To 12mm 20mm 32mm Chamfer Hole Cut Cutter
Highlights Product Selling Points: - Step drill bits are versatile and can be used with a variety of materials, including metal and wood. - They are particularly useful for woodworking and sheet metal-based projects, as they can drill pilot holes of multiple sizes with the same bit. - Additionally, they can be used to clean away waste material in holes. - The titanium nitride (TiN) coating on cutting tools, punches, dies, and injection mold components is wear-resistant, inert, and reduces friction. - Using TiN coating can improve the tool life of these components by two to ten times or more compared to uncoated tools.