Abstract: A device for handling connector pins, that is, for inseting and removing pins from alined holes in structural members, comprising a pair of frame plates notched to fit over the structural members and which are formed to receive the hydraulic jack and pump of a conventional tool so that extension of the jack moves the connector pin into or out of position. For insertion, the frame receives a pin in alinement with holes in the structural member, and for removal the frame includes a tray for receiving the pin when it is pushed free. In each case, extension of the jack causes pin movement. The center of gravity of the device, and a suspension member, is to the jack side of the notches so that the device can be manipulated at one side of the lower cord of a crane boom, for example. Jack piston extensions and pin handling tools are provided.