There are some that are free for home/non-commercial usage, but it would be a license violation for usage with a commercial establishment such as a corporation. (Don't forget, many of them "tag" cloned installs, so they can forensically-examine which cloning software was used to make the clone, and the serial number/product key/hash. At least, I know for a fact that Norton Ghost for DOS did that.)I doubt you will find any decent cloning tool that is free for professional use.
There are some that are free for home/non-commercial usage, but it would be a license violation for usage with a commercial establishment such as a corporation. (Don't forget, many of them "tag" cloned installs, so they can forensically-examine which cloning software was used to make the clone, and the serial number/product key/hash. At least, I know for a fact that Norton Ghost for DOS did that.)