1/8" Shank 0.1mm-1.0mm Tungsten Carbide CNC Engraving PCB Drill Bits Set 10 Pcs - Multi-color($11.99Value)
PCB Drill Bit: Cutting edge diameter: 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm; shank diameter: 3.175mm / 1/8"; overall length: 38mm / 1-1/2".