Drilling solder paste stencils

These are usually laser cut ($$$) but what's wrong with CNC drilling
your own using the coordinates for the SMD pad centers? Paste doesn't
have to cover every nick and cranny of the pad. It will require a few
tool changes for the various pad sizes but since we're dealing with say
8 mils brass ***, relatively cheap high speed steel bits can be used.
Any other thoughts on this?

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