Spiral Step Drill 101057F RUKO

●Using high-grade material, stable drilling without burdening and chattering is possible.●Step Width (mm):4●Number of Stages (stage):8●Shank Diameter (mm):10●Drilling Dimension (?3mm):6, 9, 11.2, 14.5, 18.2, 22.3, 27.9, 32●Surface Treatment: Titanium Aluminum Coating●High-Speed Steel