I did that with mine. But I found that I had to feather the drill a lot to keep the grind consistent.
Eventually I just went back to buying pre ground.
Edit: actually I think I have the pro version of yours. Ended up buying a steel ring to go between the mill to stabilize the central steel pin. Got a more consistent grind after it. But felt I needed to keep the drill at a lower speed.
I did that with mine. But I found that I had to feather the drill a lot to keep the grind consistent.
Eventually I just went back to buying pre ground.
Edit: actually I think I have the pro version of yours. Ended up buying a steel ring to go between the mill to stabilize the central steel pin. Got a more consistent grind after it. But felt I needed to keep the drill at a lower speed.