Metal Drill Bit, Wood Drill Bit, Hex Shank Drill Bit manufacturer / supplier in China, offering 5PCS Carbide Hinge Boring Adjustable Forstner Drill Bits Set with Hex Shank 15-35mm for Wood Plywood Plastic, 15-60mm Woodworking Drill Bit Set Boring Hole Saw Cutter Carbide Tip Hex Round Shank Forstner Drill Bit for Smooth Finish & Flat Bottomed Hole, Hinge Boring Bits for Wood Woodworking Tct Carbide Forstner Boring Drill Bits and so on.