50pcs 0.3-1.2mm PCB Twist Drill Bit Tungsten Steel Carbide Drills For Metal CNC Hole Drilling Tools 1/8" Fixed Shank Drill Bits

50pcs 0.3-1.2mm PCB Twist Drill Bit Tungsten Steel Carbide Drills For Metal CNC Hole Drilling Tools 1/8" Fixed Shank Drill Bits

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