Chapter 9 Profile Tolerances 317 Between Symbol Specifications The Drawing The Meaning H = Letter height H 3H 0.8H 0.6H Basic dimension option ± Dimension option Between symbol True profile Basic Dimension Option ± Dimension Option 0.2 profile tolerance zone 0.2 profile tolerance zone X 38.5 37.5 Y (controls form, orientation, and location) (controls form and orientation) Example 9-2. A profi le of a line tolerance specifi ed between two points.