Just got in the mail my Master Airscrew 12x6 prop to go on my Saito 56. I was under the impression the prop would just slide onto the threaded prop shaft and then you would snug it down with the plate/nut combo. However in order for me to get the prop on my Saito, I have to hold the hub with pliers and screw/thread the prop onto the shaft because apparently the hole on the prop is a tad smaller than the prop shaft. Is that normal? Do I need to drill out the prop hole so that it slides down on the prop shaft? I guess I assumed the pre-drilled prop hole would be slightly bigger than the prop shaft.

Thanks guys!

Josh