Building a custom CNC keychain is a fairly simple process. Likely to need to provide the material, end, and quantity for your item. Once keychains custom have specified these particulars, now you can send a great email. The COMPUTER NUMERICAL CONTROL company will deal with the rest. You'll be emailed back quickly with a proof of your buy. Here's how custom metal keychain works: Once might sent the e-mail, the CNC organization will work on your own order.