10pc 3.175X2.4X10.5mm Left Spiral PCB milling cutter down cut Corn end mill Engraving Bit CNC PCB drill bit Set pcb router bits 10pc 3.175X2.4X10.5mm Left Spiral PCB milling cutter down cut Corn end mill Engraving Bit CNC PCB drill bit Set pcb router bits Price USD $ 13.00 ORDER Share this:TwitterFacebook