Because the machine is small you are limited to the length of drill/mill that will fit to sharpen on the front edge of the wheel. But to use the rear edge you don't have a stop so I mode this to clamp on.
Now I can limit the front to rear direction travel as well as the rear to front direction travel. (If you have one of these or a clone you'll know what I mean)
It's a whole new skill/black art sharpening end mills but here are a couple more I did.
Still need the grind the clearing in the center but the slot drills work well already
Rota broach cutters probably won't be too difficult as there is plenty of room between the teeth. Small end mills are the real pita because one slight mistake and you destroy it and have to start again.
The chuck was hard so had to be normalised to soften the steel before it went in the lathe.