OTOSAD-98-ECO automatic hydraulic steel reliever provides automatic relieving of straight, beveled or anti-kickback shoulders in one cycle. OTOSAD-98-ECO is designed specially for relief grinding of T.C.T. circular saw blade bodies. After grinding a circular saw for many times, the carbide-tip gets abraded and the distance between the carbide-tip and the saw blade body diminishes. On the minimum level, the saw can not perform the cutting process properly. To use such saw blades again, relief grinding with OTOSAD-98-ECO should be processed. After and creating an adequate operating distance by relief grinding, the old saw blade is ready to be used again.