Drilling Hole Diameter from 1.0 mm - 13.0 mm, Other Size Please Send Remark Suitable for CNC Machining Steel, Stainless Steel, Mold Die Steel, Carbon Steel,Iron Casting Top Angle Design Makes Higher Efficiency for Drilling Sharpness without Burrs Nano Coating has Better Wear Resistence and Oxidation Resistance Universal Shank is Widely Used with the Clamp Drill Chuck
