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<b> <i>Machinery’s Handbook Pocket Companion</i> </b> is designed for anyone in the machine trades for whom convenient access to just the most basic data is at a premium. Extremely concise yet authoritative, this invaluable tool draws on the wealth of tables, charts, and text in the <i>Machinery’s Handbook, 30th Edition</i>. Much of the subject matter is reorganized, distilled, or simplified to enhance this book’s usability and to keep its bulk down. Both practitioners and students will find the <i>Pocket Companion</i> to be a convenient ready-reference to keep nearby while working on the shop or factory floor or learning the fundamentals in the school lab. While it serves as a complementary text, this book does not replace the <i>Handbook</i>.