... .Model: 1GQN-250B rotary tiller 2.Tillage width (cm): 250 3.Tillage depth (cm):12~16 4.Required power(hp):46 ... cutter shaft, knife blocks is thickened, cutter shaft bearing increase;3, strengthen type gear box : : bold gear box spline axis, gear ... you at the first time, Agricultural machinery, 1GQN-250B powerful cultivator/rotary tiller