Form Tolerance

Form tolerance is a manufacturing specification that defines how much a part’s shape or surface features can deviate from the ideal design, without affecting its function. It ensures that features like holes, edges, or surfaces are within acceptable limits for size, shape, or smoothness. By controlling form tolerance, manufacturers can guarantee parts fit and operate correctly while allowing some variability inherent in production processes. This helps maintain quality and functionality across produced parts, ensuring they meet design intent without requiring absolute perfection.