<p>The present invention relates to a fitting tool (1) to fit and secure a screwable stopper into the head of a pedicular bone screw by means of screwing, said fitting tool (1) comprising an elongate shaft (2).at a first end of which is formed a handle part (3) and at a second end of which is formed an engaging part (4) configured to engage a longitudinal bore in a screwable stopper, wherein the engaging part (4) is configured to engage said longitudinal bore in said screwable stopper such that the fitting tool is automatically released from the screwable stopper once it has been screwed in a said head for a determined length.</p>
