If you've started designing your own PCBs in Eagle or KiCad and want to make your PCB a reality, you may start out with an etching system to pattern out traces. But that's only half the job! You'll also need a way to drill some tiny and accurate holes.  That's why we've started selling these PCB drill tips in a variety of sizes.They're made from carbide (tungsten steel) and are suitable for circuit boards, electronics, SMT, molding, metal...