EBI Stage Drill, Non-Coated, 9 Stages, Shaft Diameter 10mm, 5-21, LB521, 1 Piece

Catalog number: LB521 Features: ●One drill can handle a variety of diameters, including drilling, enlarging pilot holes, and correcting and chamfering. ●Cobalt high-speed steel is used, providing excellent sharpness and life. ●Less back burrs, reducing the need for deburring after drilling. ●The blade has been specially processed and uniquely polished, so there is less resistance during operation and it is excellent in sharpness and chip removal. ●The drill has little lateral slippage and excellent bite into the workpiece, eliminating the need for a center punch. Applications: ●Workpiece: Steel plate, wood, plastic, etc. (Do not use on heat-treated metal plates.) Specifications: ●Step width (mm): 5 ●Number of steps (steps): 9 ●Shank shape: φ10mm straight shaft (three-sided chamfer) ●Shank diameter (mm): 10 ●Drilling dimensions (φ): 5, 7, 9, 11, 13, 15, 17, 19, 21 ●Total length (mm): 81 ●Surface treatment: Non-coated ●Color: Silver ●Non-coated Material/Finish: ●Cobalt high speed steel Set contents/Accessories: ●None