Here’s an easy way to cut your own keys using a CNC mill! [Bolsterman] now “works ... machine was a 3/8th 90° countersink bit with the end ground to a flat approximately 0.055″ across ...

The CNC-3020 The cheapest machines tend to ... I would recommend buying this set of cheap drill bits. The last bit we need is the End mill, responsible for cutting out our board from the larger ...