I’ve done this with my coffee mill. The grind shaft is a hex and the chuck connects perfectly. I like to do it manually normally, but the kids get a kick out of

I’ve done this with my coffee mill. The grind shaft is a hex and the chuck connects perfectly. I like to do it manually normally, but the kids get a kick out of turbo grind mode. https://images.app.goo.gl/eTfa2bnUGFV9sQq97 https://images.app.goo.gl/eTfa2bnUGFV9sQq97