The most common aspect in gold inlay and amalgam cavity design is
Axiopulpal bevel
Gingival bevel
Occlusal bevel
Axiofacial bevel
The gingival bevel removes the unsupported enamel and compensates for casting shrinkage. It is a feature of resistance form. Reverse bevel is given in inlay for lap sliding fit. It locks the restoration and prevents proximal displacement.