CWEA Maintenance Technologist Practice Test 2026 – Complete Exam Prep

A chuck key is a tool used to tighten or loosen the jaws of a drill press. One of the critical safety features concerning a chuck key is ensuring it is attached to the drill press by a short chain or cable. This measure prevents the chuck key from being left in the chuck when the machine is in operation. If the key is inadvertently left in the chuck and the drill press is started, it can cause serious accidents or injuries, including flying objects or damage to the equipment. By attaching the key to the drill press, you significantly reduce the risk of it being misplaced or causing safety hazards during operation.

While other features may enhance safety or efficiency, the paramount concern with the chuck key is ensuring it is always accounted for during the operation of the drill press to prevent accidents.