Rich Rosenblatt 
Great Bur for Onlays
Here is a must-have bur if you like to do onlays: the Axis 845 KR taper. It has the perfect barrel shape for divergent walls and makes sure that your isthmus is not too thin so you won't be as likely to fracture porcelain. Since the bur is so wide at the bottom, it allows you to get a very flat floor to maximize ease of milling and accuracy of fit of the restoration. Check out the bur, I highly recommend it if you like to do inlays and onlays.
