3M Hookit Film Disc Roll 466LA uses 3M microreplication technology to furnish small but mighty discs great for automotive workshops or spaces where coating repairs are common. These discs help to repair light defects, especially in automotive paint applications.3M Finesse-it PSA Film Disc Roll 466LA engineered by incorporating silicon carbide mineral into a matrix of repeating microstructures, and the film backing minimizes the chance for surface abnormalities. The micro-structured silicon carbide mineral cuts sharply enough to quickly remove imperfections, but not so much so that you risk gouging or marring the surface. It is commonly used for defect repair on clear coats, paint and plastics, because it can effectively refine these surfaces without significantly gouging or damaging the workpiece. The hook-and-loop attachment allows the discs to be removed cleanly and easily, without the need for operator intervention. It is commonly used for defect repair on clear coats, paint and plastics, because it can effectively refine these surfaces without significantly gouging or damaging the workpiece. Available in three grades -- A3, A5 and A7, 3M Finesse-it PSA Film Disc Roll 466LA has been the clearcoat spot repair disc most used by automotive manufacturers worldwide. It can be used for both manual and automated processes.