CLOCKS WITH STEEL PLATES:
There have been a number of clocks made that have steel plates instead of
brass. Some of them have brass bushings installed and some of them don’t. If you
are using special reamers ; do not try to use them to ream out the steel,they will be destroyed by the hard steel : it will dull them immediately. The brass bushings that
are factory installed will push out if you don’t have something backing it up when
he new bushing is pressed into the larger factory bushing. Some plates are brass plated
steel. Be sure to check the plates with a magnet before reaming.