Smile Line’s Dynamometric Key offers optimal precision when tightening implant screws. Smile Line’s Dynamometric key is adaptable to all of the Smile Line drivers, and the controlled torque is 9Ncm, which helps prevent over tightening of the implant screws on the model. It is an excellent and easy tool for an implant department’s bench top. Each key is supplied with one adaptor (4000-BD) compatible with all Smile Line handles.