The speeds and feeds section has been revised, updated, and greatly expanded to include new materials, more cutting tools, and tool life estimates. The entire welding section has been completely rewritten to incorporate all the latest technologies. The numerical control section has been expanded and rearranged to facilitate use. Logarithm and trigonometry tables have been reinstated. New to this edition are sections on bolt tightening torques, motion control systems, ISO 9000, lasers, dividing heads, bandsaws (including speeds and feeds), electrical discharge machining, retaining rings, machinability of wood, and collets. All the useful and practical information on contemporary manufacturing processes and all the material on basic mathematics, mechanics, materials, measuring, tooling, machining, fasteners, threads, bearings, machine elements, and engineering standards have been reviewed and updated where necessary.