Crutching is generally carried out in shearing sheds, using shearers and the same tools as for shearing the entire fleece, as crutching is simply shearing only a portion of the animal. Blade shears may be used, especially where an individual sheep is particularly dirty, or flystruck. Generally, whole flocks are treated together. A mechanical shearing handpiece is used, and the graziers sit the sheep between their legs and shear the required portion of the sheep, leaving the main fleece to continue growing. There are also many varieties of crutching cradles which allow the sheep to be crutched with less physical strain to the operator.