Blasting Steel Grits are small abrasive particles that are used in a process called grit blasting or shot blasting. Grit blasting is a process of forcibly propelling a stream of abrasive material, such as steel grits, at a surface to remove contaminants or coatings, smooth out rough surfaces, or prepare it for further processing. Blasting Steel Grits are made by crushing and screening steel shot, which is then heat-treated to increase its hardness and durability.