Yes, the drill output shaft has a 3/8" UNF thread. I think a lot of people use a brake union fixture as a hub, as they are quite long (so they can go all the way through a wheel). The outside is a 1/2" hex.

I used circular inserts (from here: https://www.gwr-fasteners.co.uk/38-u...el-50571-p.asp) press fit into scooter wheels. Scooter wheels unfortunately have quite hard tyres so may not be the best, but if you do use them I think Yak wheels are quite cheap and are reasonably soft. You'll need the 22mm OD inserts, and there's a flange in the middle of the wheel hub that has to be drilled out with a 22mm spade drill.