Which part of a drill bit is inserted into the drill chuck?

The part of a drill bit that is inserted into the drill chuck is the shank. The shank serves as the connection point between the drill bit and the drill itself, allowing the bit to be securely held in place as it rotates and cuts through material.

The shank is typically cylindrical and designed to fit snugly into the chuck, which may be either a keyed or keyless type, depending on the drill. Its primary function is to provide stability during operation and ensure the drill bit is correctly aligned while performing tasks.

Understanding the roles of the other options can further clarify the context. The cutting edge is where the actual drilling occurs, and the drill angle refers to the angle formed at the tip of the drill, affecting penetration and cutting efficiency. The clearance is the space on the flutes of the drill that allows for material to be removed effectively. While all parts have specific functions related to the drilling process, only the shank directly connects with the chuck.