A power tool and a chuck release tool for a power tool, the power tool including a chuck body and a locking means for locking an operational tool within the chuck, the power tool being operable in an adjustment mode to move the locking means between an open position in which the operational tool is free within the chuck and a locking position in which the locking means secures the operational tool within the chuck, and the power tool being operable in a working mode to drive rotation of the operational tool to perform work, the chuck body including a section for direct engagement with a chuck release tool to allow a user to manually move the chuck body and thereby move the locking means between the locking position and the open position, the chuck release tool having an engagement section which directly engages a section of the chuck body to allow a user to manually move the chuck body and thereby move the locking means between the locking position and the open position.