Well, Thank you all for all your awesome imput I decided to go with a MAC tools impact with a 1/2 inch drive …
Holy smokes! I use a Dewalt 1/2″ cordless to take lug nuts off and on cars. Should probably do the job for karts.
KartLift Kart Stands
DeepSeat Kart Seats
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Don't bother PMing me, it doesn't work. Email is best: tim@kartlift.com.