Everything about REVO is state of the art. The steel is the finest cobalt/molybdenum alloy in the world. We are the only company to ever cryogenically temper this grade of steel. You could stop there and make a case for these as the best. The tension is controlled by a ball bearing leaf spring system that will feel like new for years and years. Metal to metal wear in the pivot is eliminated by our Polymer Pivot Glides™. The handle is a high tech version of our tribute to the original Hineta crane design, simply beautiful. The rotating handle turns effortlessly on a sealed ball bearing assuring years and years of outrageous performance.