• To clean a surface of undesirable rust, scale, paint, etc., in preparation
for painting, anodizing, welding, or other processes requiring a clean substrate;
• To de-burr, remove tooling marks, or otherwise finish a crude product;
• To change metallurgical properties or stress relieve a part by the
peening action of multiple impactions;
• To produce desirable matte or decorative finish; and
• To provide actual cutting or inscribing of partially masked parts,
such as tombstones.