Bending process has been widely used in sheet metal processing industry. Not only springback problem, Bending process also encounters defects on surface, owning to abrasion between workpiece and bending mold. The problem of defects on surface directly affects household appliance industry, requiring perfect workpieces. From research studying on edge bending of sink by material AISI 304 shiny type, scratches is found around bended edge and it affects the quality of workpieces. In order to solve a problem, researchers have proposed methods to reduce friction by PVC film; but due to its short life expectancy, Roller V-die is innovated to replace PVC in bending. From the experiment, when bend the workpieces by Roller V-die, the result is still scratched but the new innovation has longer lifespan than PVC film.