Spiral Stage Drill LBH622SPN LOBSTER

The spiral groove makes the rake angle more acute than a straight groove, increasing the sharpness significantly.As cobalt high-speed steel is used, it has excellent wear resistance and heat resistance and long-lasting sharpness.Work material: Iron plate, wood, plastic, etc.(Do not use on heated metal plates.)Step Width (mm):4.0Number of Stages (stage):9Shank Diameter (mm):6.35Drilling Dimension (?3mm):6, 8, 10, 12, 14, 16, 18, 20, 22No CoatingCobalt High Speed SteelNone