How to Eliminate Pigtails When Sanding: DA Sander Orbit Size & Pad Hardness Explained (80–3000 Grit Guide)
Those tiny swirl trails—called pigtails—are the bane of any random-orbit sanding job. They appear when the pad orbit, speed, or backing hardness doesn’t match the grit or surface. Understanding orbit size and pad flexibility keeps scratches uniform and invisible under...