Which term describes a flat angle along the edge of a part or between the edge and a specified face?

The term that describes a flat angle along the edge of a part or between the edge and a specified face is chamfer. A chamfer is typically used to create a beveled edge that can improve the aesthetic appearance of the part and also reduce the risk of chipping or damaging the edge during handling. This technique allows for easier assembly or mating of parts and can aid in the safety and effectiveness of a design by eliminating sharp edges.

In contrast, the other terms are not applicable in this context. A detail view refers to an enlarged view of a specific area in a drawing, allowing for greater clarity on intricate features. A countersink is specifically a conical-shaped recess around a hole, designed for the head of a screw to sit flush with the surface, which has a different purpose than creating a flat edge. The data panel refers to a user interface component that presents various information and options, unrelated to the physical characteristics of parts.