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Description:6Pcs 6-19mm Countersink Drill Bit 5 Flutes Hex Shank Titanium Coated Chamfer Cutter Set 6/8/9/12/16/19mm Features:-[High-quality material]: It is made of high-speed steel and has 6 sizes with different diameters for you to choose, and the drill bit is not easy to become blunt.-[Goo..