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This ASME Y14.5M-1994 and ASME Y14.5-2009 comparator highlights the differences between the two Standards. The reference is packed with useful information. Each of the 14 geometric symbols are shown with a meaning from both the 1994 and 2009 Standards along with illustrations of sample tolerance zones and inspections. The 7 new symbols are shown with the meaning from the 2009 Standard. Included is a description of how it was done in 1994 without the new symbol. A graphic illustrating how to use the new symbol is included. If you are moving from the 1994 Standard to the 2009 Standard or if your company has drawings in accordance with both standards, this handy reference is a MUST HAVE.