A tool is used to determine whether or not a dimension between two surface features on two joined work pieces is within an acceptable range. The tool includes housing, first and second supports carried on the housing and carrying fingers which engage the surface features in a dimensional measurement position. An actuator and linkage displaces the supports relative to each other to bring the fingers into engagement with the first and second surface features on the work pieces. A first sensor is carried on the housing for measuring the dimension between the first and second fingers when the first and second supports are fully displaced relative to each other. The first sensor sends a dimensional measurement signal to a controller which compares the measurement signal with predetermined acceptable and non-acceptable dimensions.