Below is a list of Shot Blasters manufacturers from Philadelphia, Pennsylvania. Shot blasters are a variety of media blasting equipment that use shot to treat a surface. Unlike sandblasters, shot blasters are limited in terms of the variety of blasting media they can utilize. While a sandblaster can make use of any variety of blasting media and still be called a sandblaster, shot blasters make use of shot, which is a collection of small metal abrasives, exclusively.