What is the part of the drill bit that is secured in the drill called?

The shank of a drill bit is the part that is secured in the drill. It is specifically designed to fit into the chuck of the drill and ensure a tight grip. The shank allows the drill bit to be held securely while it rotates, transferring the rotational force from the drill to the bit itself, allowing it to effectively cut or drill into various materials.

The shank often has a smooth or sometimes specialized design (e.g., hex or tapered) that allows for efficient engagement with the drill. Understanding this component is crucial for recognizing how drill bits function and how to properly use and maintain them for tasks such as drilling holes for adhesive anchors.