X-radiography and computed tomography (CT) are common NDT inspection tools supporting the development of additively manufactured (AM) and parts and components. AM products are being used in space and aerospace, as well as automotive, oil and gas, and medical applications. Some of these parts are flight critical, thus requiring unique testing methods for part certification and approval. The presentation focuses on metal AM and discusses capabilities of X-ray radiography and CT methods. It defines and helps users better understand resolution and its challenges in flaw detection and metrology.