Need more fine grind for Cuisinart Burr Coffee Grinder Programmable 2-14c CBM-18C
Some low end coffee mills have calibration capability, such as Baratza Virtuoso. Maybe a little googling on the model might turn up some information.
Coffee grinders in that price range generally don't grind fine enough for espresso. Two that do (barely) are the Baratza's and the KA Pro Line. As you probably know the key to good espresso is a proper grinder. Newbies are often shocked when it is recommended to them that they spend MORE on a grinder the on a espresso machine.
There are a lot of dedicated sites for espresso and equipment. One of the most popular is coffeegeek but there are others.