EBI Stage Drill, Non-Coated, 9 Stages, Hexagonal Shaft, 5-21, LBH521, 1 Piece

Catalog number: LBH521 Features: ●The blade has been specially processed and uniquely polished, so there is less resistance during operation and it has excellent sharpness and chip removal. ●There are few burrs on the back, reducing the amount of deburring work required after drilling. ●One tool can be used for drilling, enlarging pilot holes, correcting and chamfering various diameters. ●The use of cobalt high-speed steel provides high sharpness and life. ●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): 4.0 ● Number of steps (steps): 9 ● Shank shape: 6.35 mm hexagonal shaft (with ball groove) ● Shank diameter (mm): 6.35 ● Drilling dimensions (φ): 5, 7, 9, 11, 13, 15, 17, 19, 21 ● Overall length (mm): 81 ● Surface treatment: Non-coated ● Non-coated Material/Finish: ● Cobalt high speed steel Set contents/Accessories: ● None