10Pcs/lot 3.175 Shank Carbide PCB Drill Bits For Print Circuit Board Mini CNC Drilling Bit Set Micro Engraving Endmill 1mm 2mm
https://www.vogueparade.com/shopping/EN/100006468/1/1005001979950160/10pcslot-3175-shank-carbide-pcb-drill-bits-for-print-circuit-board-mini-cnc-drilling-bit-set-micro-engraving-endmill-1mm-2mm//