Abstract: A tool for installing a traction stud including a threaded shank having a pointed ground engaging end and an opposite end mounting a transverse head on a snowmobile drive belt so that the head bears against the inside surface of the track and the pointed end projects outwardly beyond the outside surface of the track. The tool includes a pair of clamping members which have pivotally coupled together along one lateral side of the belt and have free terminal ends mounting opposing clamping jaws which swingably move between spread positions spaced from the belt and closed positions clamped to the belt. Handles are provided on the ends of the elongate member laterally adjacent the track for moving the clamps between open and closed positions.