Free? I wish. Some are, but any really worth having around most certainly are not free. The free ones are worth pretty much what you pay for them.
Chisel fonts are a specialty item and usually come in a couple of pieces intended to overlay each other. There is no effect that you can apply to create a chiseled type face. You can mess around with bevels and bitmaps but they won't do what you want. If you want a chiseled font, you buy one or laboriously create the overlay yourself. A pain in the butt, it's faster and in the long run cheaper, to just buy one that will suit your circumstances.