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* A new more usable organization...every section has been reformatted so that you will never have to search outside of that area for information on the topic you are exploring. * 30% MORE math coverage...from the basic to the advanced, you'll find fractions, positive and negative numbers, derivatives and integrals, analytical geometry, circular segments, matrices and engineering economics. * New or revised material on...cutting tools, screw threads, symbols and abbreviations, threads and threading, disc springs, properties and materials, sine bars, and sheet metal. * Updated Standards. * New individual indices for standards, materials, and interactive equations. Read more...