10pcs/set 0.1-1.0 0.3-1.2 0.5-1.4 1.1-2.0 1.6-2.5 mm PCB Mini Drill Bit Carbide for Print Circuit Board CNC Drill Bits Machine

10pcs/set 0.1-1.0 0.3-1.2 0.5-1.4 1.1-2.0 1.6-2.5 mm PCB Mini Drill Bit Carbide for Print Circuit Board CNC Drill Bits Machine

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