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 never had an issue with my HSA card. Paid into one from 2016-2020 when I had a state job. Then switched off a high deductible to a standard plan with an FSA. Left the state job in August 2021 to go private. finally burned through the last of the HSA money in June 2023. Switched jobs back to the state last August and started paying into the FSA. They hassled me over every charge that wasn’t a copay. Go go the eye doctor. Prove it. Buy contacts. Prove it. Go to a chiropractor. Prove it. They deactivated my FSA card over $1.60 that the insurance said was over the standard amount.
Sorry, I pay into the account for medical purposes. I go to a doctor and you pay it. You have no business knowing WHAT the doctor did to me. They were demanding stuff as documentation from my wife that was a blatant privacy violation.