Patent ID: 7290468

Claim:
A socket adapter, comprising: a body having an inside formed with a receiving recess, a peripheral wall formed with a slide slot connected to the receiving recess; a drive head extending from the body and comprising an inside formed with an operation slot in communication with the receiving recess and a periphery formed with a ball hole in communication with the operation slot for receiving a ball; a drive rod slidably inserted in the slide slot of the body and formed with a plurality of locking grooves; a control member movably inserted in the body and provided with a locking portion detachably locked in one of the locking grooves of the drive rod; an operation rod movably being inserted in the operation slot of the drive head and comprising a first end formed with a stepped face in alignment with the ball hole of the drive head and rested on the ball and a second end rested on the control member; and an elastic member compressed between the second end of the operation rod and the body to push the locking portion of the control member towards the drive rod so that the locking portion of the control member is locked in one of the locking grooves of the drive rod.