11.   Essentially that is an abrasive cutting process using abrasive papers, stones, files or strops.

12.   Finish by sanding down the final coat with the finest grit wet-or-dry abrasive paper you can buy.

13.   Place abrasive papers on a flat surface and use a lubricant like oil or water.

14.   To join two pieces of metal, clean and brighten the metal with abrasive paper.