• Q345R steel
  • 16Mo3 steel
  • A283GradeC steel
  • A516Grade70 steel
  • A572Grade50 steel
  • cortenA steel

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China High Quality High Speed Steel Drill Bit M22 Machine

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Step Drill Bit (68) Step Drill Bit Set (1) Drill Bit Material. High Speed Steel. Offering excellent heat and wear resistance, this material can be used to drill wood, fiberglass, PVC, aluminum, and other soft metals. Titanium. Corrosion resistant Titanium coatings are good for cutting steel, iron, wood, and plastic. Cobalt Steel (4) High

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