For sale is one lot of 54 spacers for 1" diameter horizontal milling arbors. Most (except maybe 2-3) have keyways. Some are very heavy and thick, some are less so. No little foil type spacers are included. Only solid pieces.
I will be listing milling arbors and spacers for other diameters such as 1.25" and 1.5" and 7/8".
There is basically no rust on these spacers. They are used, surplus of Fermilab (not production environment).