NEW 10PCS PCB Drill bit tungsten alloy on shank drill 0.1/0.3/0.35/0.4/0.45/0.5/0.55/0.6-3.175 mm circuit boards CNC Drill Bits

NEW 10PCS PCB Drill bit tungsten alloy on shank drill 0.1/0.3/0.35/0.4/0.45/0.5/0.55/0.6-3.175 mm circuit boards CNC Drill Bits

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