Mold polishing is a critical surface finishing operation that directly affects the quality of molded or cast parts, mold service life, and production stability. In mold manufacturing, physical polishing remains one of the most widely used methods due to its flexibility in handling different mold materials, surface geometries, and finishing requirements. However, mold polishing is not simply a matter of progressing from coarse to finer abrasives. An effective process requires control of multiple factors, including the surface condition after machining, abrasive grit size, polishing direction, applied pressure, working speed, lubricant, and cleaning between each stage.