Shot Peening is a process of shooting various sizes of steel bb’s at designated areas of parts to strengthen the life of such areas. Many manufacturing processes can create stress on metal surfaces. This stress can cause small cracks or stress corrosion over time.  The shot or bb’s realign the surface molecules to create stronger comprehensive layer. This process is widely used in the automotive industry to lengthen the life of such parts like rear ends, housing, connecting rods, crank shafts, and more.