A carpenter's belt loop makes for quick access to your hammer when you need it. Both are found at hardware stores. Hand guards are now available for most chisels and they come in bright colors which makes them a lot safer and harder to lose. The gad pry has a point at one end and a short right angled blade at the other for prying layers apart. It is usually 18 inches or more long and offers some leverage.
Crow bars are useful for turning and moving big stuff and come in many sizes.
For actually getting small fossils loose or exposed from the rock you need a finely pointed tool. Ice picks, dental picks or just a small nail stuck in the end of a dowel are handy. You can find used dental picks in most hardware stores these days. A good example would be a specimen that is starting to disarticulate and must be collected in pieces for later assembly such as a crinoid or trilobite. I have one long tweezers with an offset tip that works well for everything.