Which feature is used to create a hole that goes through multiple parts?

The ability to create a hole that goes through multiple parts is primarily facilitated by the Assembly Feature. This feature is specifically designed to work within an assembly context, allowing users to apply features like holes that interact across different components. By utilizing assembly-level features, the designed hole can connect or pass through several parts simultaneously, which is essential in assembly design for ensuring parts fit together as intended.

In contrast, options like Extruded Cut and Boss-Extrude are both features typically used for creating or removing material on a single part rather than across multiple components in an assembly. Similarly, a Fillet is used to create rounded edges on parts, which does not pertain to creating holes at all. Therefore, Assembly Feature uniquely addresses the requirement of managing holes that span multiple parts in a cohesive manner.