N/a manufacturer / supplier in China, offering Straight Shank Cobalt M2 High Speed Steel Precision Twist Drill Bits for Drilling Metal Iron and Aluminum, Bit of Titanium Coating, Cobalt Twist Drill Bit, Straight Shank Drill Bits, 1.5-6.5mm Titanium Coated Twist Drill Bit Set HSS High Speed Steel Drill Bit for Wood Metal Hole Cutter Power Woodworking Tools and so on.