saw blade type things, never seen anything like it, about 2 inch diameter and 1/4 inch width
Looks like one of those units that goes on a 4 inch grinder for folks who do rough out woodworking/carving.
what you have looks very similar to these
http://www.woodcarverssupply.com/2-CARBIDE-NUGGETtm-WHEEL/productinfo/264866/