This article explains why a larger excavator bucket does not automatically increase output, examining how tooth geometry, soil resistance, moisture, payload mass, incomplete fills, material release, and wear affect cutting performance and cycle time, while showing engineers how to measure actual material moved, separate digging, lifting, swinging, dumping, and return phases, verify stability and attachment compatibility, and compare bucket options through repeatable field trials before specifying production capacity for varied excavation conditions in construction, quarrying, drainage, and land development projects.