If they had side cutting teeth then yes they would work but it would have to be done on a CNC horizontal mill because the program works the offsets out in Y and A

To use a slitting saw on a vertical it would have to be rewritten to use Z and A

Another disadvantage is that because of the larger diameter it would not be possible to work up to a shoulder or larger gear, however this would be offset by the cutters being a lot stronger.


[Edit] another disavantage is that you wouldn't be able to do helicals