12pcs Tap Drill Bit Cone Drill HSS Metric Blue Replacement Screw Thread

Highlights - Suitable for drilling, tapping, and cutting various velvety metals, aluminum plates, and iron. - Features a fast replacement composite cone that utilizes a drill edged principle for efficiency. - Allows for drilling and tapping in one step, saving time and reducing processing steps. - Includes a self-centering point, eliminating the need for center drilling or center punching. - Made from high hardness material, ensuring rustproof, solid, and durable performance. Perfect for everyday use. excellent materials and excellent craftsmanship ensure long-lasting durability.