A electrified grappling hook or electro grappling hook, was a wrist mounted electrified hook that was shot with a single button mounted on the wrist mounted system. Then, with a second button, the hook was electrified with a powerful charge of electricity.
Captain Fordo used a electrified grappling hook on Durge during the attack on Muunilinst. Fordo hit Durge directly in the forehead and electrocuted him. Although Durge broke the connection, which threw Fordo back and left him vulnerable, General Kenobi used The Force to break free of Durge and temporarily defeated him.