Norton No-Fil Durite A413/A414 Sheets – Good general purpose choice; penetrates dense, hard materials (glass, ceramics, etc.) and is excellent for finishing. Full size (9" x 11") and cut paper sheets are used for both metalworking and woodworking applications. Packed in protective dispensers and/or convenient job packs to eliminate waste and permit easy, neat storage. Typical applications include light-duty metal sanding, primer sanding, defect removal from painted surfaces, filler sanding, sanding and finishing of composites and fiberglass, bare wood sanding, and sanding between sealer coats. Paper sheets are typicallly used hand or jitterbug sanding.