Today I had to cut off a 3-unit bridge made of base metal alloy. The metal framework was very thick. I tried coarse diamonds first which did not get me anywhere. I then tried out a new product called metal cutters from Microcopy. They are supposed to make it easy to cut through metal – hence the name metal cutters. These burs chattered and bounced off the metal. They broke almost as frequently as the 556 cross-cut fissure burs that I tried. Please, if anybody knows of any product that will allow me to cut through these metal frameworks – what is it?