I bought a drill check for it.
I is crazy tools for the mill you can get a china chuck $20 or a 1K chuck.
this is something I should use a fair amount it seemed like this chuck got good reviews so I though I would try it. I found a coupon got it for $300 shipped. saw the same exact one for $600
It comes with a test sheet showing not much runout.
As I buy stuff for the mill not being a machinist it is hard to know if a cheep tool for this is fine or a cheap tool is just throwing money away is very hard to know what to buy.