BB Micro Drill Solid Carbide Bit Mini CNC Aluminum Hole Making External Cooling 3xD Shank Diameter 4mm D4 BF2055 0.3~2.02mm

BB Micro Drill Solid Carbide Bit Mini CNC Aluminum Hole Making External Cooling 3xD Shank Diameter 4mm D4 BF2055 0.3~2.02mm

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