Chapter 1 Ge ometric Dimensioning and Tolerancing Essentials 5 Copyright Goodheart-Willcox Co., Inc. E D D INC. Drafting, design, and training for all disciplines. NGINEERING RAFTING & ESIGN, Integrity - Quality - Style Goodheart-Willcox Publisher Example 1‑2. The control arm stop drawing from Example 1-1 defined with dimensions, tolerances, and notes. Notice the extensive additional content needed to convey the same requirements defined using GD&T.