taper shank drill Diameter: 1mm-30mm Coated: Tialn, tin (option) With high quailty, diliver in time and good price. We supply you various taper shank drill, carbide drills,solid carbide drills, cemented carbide drills including step drill, twist dirlls, center drills, drills with straight flute, 3-lip drills, Diameter: 1mm-30mm Coated: Tialn, tin (option) With high quailty, diliver in time and ...