MIXED STEEL SHOT
A fast form of tumbling media used to burnish (pounding metal on metal) metal to a mirror bright finish. The shot is of uniform size and shape.
Mixed shot tumbler media is a combination of 3/16" (4.8mm) balls, 3/16" (4.8mm) ball cones, 1/8"x3/8" (3.2x9.5mm) pins, 1/8" (3.2mm) diagonals for maximum coverage of a wide variety of pieces. You must use burnishing compound with steel shot.
Note: Stainless shot is not "top-of-the-line" 300 series quality. It is much more corrosion resistant that its carbon steel counterpart, but that doesn't mean that it won't rust if not properly taken care of. Cleaning and storing your shot carefully will always extend its life.