IA-400 Prosthodontic Screwdriver set. This cordless prosthodontic screwdriver provides precise torque control when tightening the screws. Single-handed operation means fast, safe operation with the best possible view of the treatment site. Adjustable torque values from 8 Ncm to 40 Ncm in 1 Ncm steps. The driver stops automatically when the desired torque value is reached. The set includes: Cordless Screwdriver, handpiece, charging station.