The 3M™ Dual Lock™ Rubber Skirt crews onto a 3M™ 3125 Nib Sander and offers a highly secure attachment for a 3M™ Dual Lock™ Disc Pad (sold separately). This solid foundation enables operators to achieve high performance finishing precision from film discs, even in extreme wet applications.Whether repairing clearcoat defects or scuffing solid surfaces, a lubricant helps keep the workpiece and disc free of debris to produce the cleanest surface possible for polishing or final finishing. Under extremely wet conditions, the operator may desire a stronger attachment between the disc pad and the tool to enhance performance precision and that's where the 3M Dual Lock Rubber Skirt comes in.