A rattle gun(impact wrench) will also remove the clutch hub nut without a holder.
Whatever you do, don't get a clutch holder that bolts onto the posts on the center hub. They tend to break those posts off and then you're SOL unless you have a machinist as a friend.
1995 XR628R -Lots of goodies...room for more.
"Another breakdown, suicidal shakedown,
Feels like I'm livin' on a chain gang."