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 PCB clad. A 1-2 mm End mill does the job nicely.

Top Quality: The End Mill Round Top with 2-Flute，Made from HRC55 Carbide with AlTiN Coated that is very tough, resists wear and offers high cutting performan; AlTiN Coating: Titanium aluminum ...