This is a process that is less extensive process than sanding. It involves roughing the surface coat of finish to allow another coat of finish to be applied to renew and rejuvenate a floor.
This process is usually reserved for floors that have been refinished already. It will fix wear problems and minor scratching but will not be able to fix deep scratches. It is also important that the floor has not been waxed. Please call for more details if this is something your floor could use.