This is the picture of a hewes reel.
http://www.freestylephoto.biz/140135-Hewes-Pro-Stainless-Steel-Reel-35mm
look at the centre of the reel, you will see a teeth protruding outward and that will fit nicely on the holes on the film.
It will keep the film from sliping away while loading the film.
Most the steel reels does not have this features and therefore you have to load very carfully.
(This also accounts why ppl say steel reels is not easy to use)