Since its inception, Wm. H. Brewster Jr., Inc. has consistently manufactured the finest available Precision Round Washers, Shims, Discs and Spacers for practically every purpose imaginable. Our parts are utilized in everything from computer motors and dental tools, to the Space Shuttle and the Mars Lunar Rover. Brewster Precision Shims, Washers, Discs and Spacers are manufactured with rigorous quality control and adhere to strict government standards, certified ISO9001:2008.