10pcs 0.5mm Carbide CNC Engraving Circuit Board Micro PCB Drill Bits - 0.5mm,1Set (10Pcs)
$11.49
Specification: Cutting edge diameter (CED): 0.5mm; cutting edge length: 7mm; shank diameter: 3mm / 1/8" (approx.) overall length: 38mm / 1-1/2" (approx.)