Brake Handwheels (4 and 6 spoke)

Open framework circular brake handwheels in strips of 4 and 6 arm varieties. The plan is to separate them with a razor saw, clean the central hole with a fine drill and mount on a piece of fine wire, but I have only just ordered them myself and I don't know how well it will work out. The 4 arm sort is meant for my Warflat, Warflat bolster and Coil E/G conversion models. The 6-arm sort for my BR built Rectank. UPDATE. These work well, I think. See picture. The wire I'm using to thread them is 0.25 mm brass. There is no need to use a razor saw to separate the wheels. Gentle pressure from a scalpel rolled around the central column is enough to cut through it.