I design and cut my combs using a CNC mill. This is just a few seconds of one of my CNC mills in action. Here I am cutting a single test comb.
My Dark combs™ are made from a material that is very dense. I need to spray water onto the endmill to keep things cool.
Once cut, I finish, flatten and check each comb by hand myself to ensure it is up to spec so as to provide best performance and outstanding tone. I do not tolerate any air leak. I fix it before it leaves my workbench.