How can I get my carbide burs to last longer?

Question:

How can I get my carbide burs to last longer?

Answer:

To extend the life and increase the cutting action, use a cigarette lighter to burn off any residue that remains on the bur after each repair. This alone will double the number of holes you can expect from the average carbide bur. Using too much pressure or a speed over 10,000 rpm can cause excess heat that will dull a bur prematurely. Although some bur distributors recommend using resin as a coolant, we have found that it can actually slow the process and has not proven to extend the life of the bur.