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Continue to Chat0.1-0.5mm 90 Degree PCB Drill Bit 0.1/0.2/0.3/0.4/0.5mm TiAlN Coated Flat Bottom PCB Drill CNC Engraving Bit https://justgreenbox.com/products/0-1-0-5mm-90-degree-pcb-drill-bit-0-1-0-2-0-3-0-4-0-5mm-tialn-coated-flat-bottom-pcb-drill-cnc-engraving-bit