1.Description:HSS Twist Drill 2.Manufacturing process:fully ground 3.Degree:118 or 135 4.Used for drilling metal Manufacturing process: milled, fully groundPoint angle: 118 or 135 split pointFlute type:NMaterial: HSS or HSS-CoFinish: White,TIN Coated,Rainbow Color,Bright,Black & Bright,Zirconium Coating,Black,Coffee Color, etc.Diameter: 1-20mm DIN340 HSS STRAIGHT SHANK TWIST DRILLS