A slip roller is a machine used to roll sheet metal with a formed radius. In addition to rolling sheet metal, the roller in the shop includes wire grooves for bending solid rod. The minimum forming diameter of the roller in the shop is 4.5" | A slip roller is a machine used to roll sheet metal with a formed radius. In addition to rolling sheet metal, the roller in the shop includes wire grooves for bending solid rod. The minimum forming diameter of the roller in the shop is 4.5" |