Controls: Intersection of mechanical and optical surfaces.  Removes sources of contamination and cosmetic damage.
Related Terms: Breakedge, chamfer
Units: Linear units for a toleranced or a maximum linear dimension, angular units for angles
Specification Must Contain: Width of face and angle, leg length and angle, or only leg lengths
Optimax Preferred Specification: Maximum face width at 45 degrees
Reasons: Directly measured with graduated eye loupe, tooling creates angle
Manufacturing Standards: MIL-STD-34, ISO 10110-1