Replacement or additional plates for the NT Sanding Plate. These are available in three grades: fine, medium or coarse. The plates fix to the handles with screws making changing to a different grade easy. Sanding Plate is a steel sheet with a specially embossed pattern that forms an abrasive surface. It cuts in all directions and has a very long life. Sanding Plate lasts many times longer than paper-backed abrasive and is reuseable hundreds of times. It is excellent for smoothing wood, fibreglass, plastics, sculpting, model building and many other uses. It resists clogging; if debris accumulates on the cutting surface, a wire brush quickly renews your Sanding Plate’s effectiveness.