50 pcs PCB Drill bit Set, Carbide Micro Drill bit,1/8" Shank Spiral Groove，0.3mm-1.2mm (5 Pieces Each) Micro Drill bit Set, Mini Drill bits, Small Drill bits,Micro Drill bits.JTEYINH

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50 pcs PCB Drill bit Set, Carbide Micro Drill bit,1/8" Shank Spiral Groove，0.3mm-1.2mm (5 Pieces Each) Micro Drill bit Set, Mini Drill bits, Small Drill bits,Micro Drill bits.JTEYINH