Several uses are possible:
Removal of paint or rust to restore the initial material.
To even a surface, to improve its appearance, or to create a grainy, matt or satin effect.
To modify the roughness of a surface in order to improve the adherence of a glue or a paint.
This process is similar to sandblasting, the abrasive in this case being metal shot, either angular or round. Shot blasting can only be considered when using a pressure blast media delivery system. Shot blasting (usually using steel beads) is also used for surface peening of mechanical parts by hammering or hardening in order to increase their fatigue resistance – this is called shot-peening,