[abakker]

standard gear cutting arbors aren't that expensive, but are often for standard module gears and the gear form is an approximation that applies to a given range of gears.

e.g. https://www.amazon.com/EVNSIX-Involute-Cutters-Milling-Machi...

[dsfyu404ed]

The "frequently bought together" set there is a surprisingly good combo for an algorithmic pick.