When operating the 3-roll reducing & sizing block in the bar mill, a 3-rib pass design enables for economical production of reinforcing steel in top quality. The extension of the product range offers a larger market potential. Simplifying the existing pass design and significantly reducing setup and changeover time as well as malfunction periods are usually pleasant side effects. Possibly the HV-stands downstream of the RSB can be eliminated. The temperature increase for the rolling strand common when rolling with HV-stands can be minimized and energy consumption drops.