Autumn and winter are the best periods where tools can be maintained and given the proper care. This whetstone can be used to resharpen your Sneeboer tools or to remove any burrs that might have formed. The whetstone is an essential instrument for taking proper care of your garden tools. The stone has a rough side (gray) and a more smooth side (brown). To sharpen garden tools, you start with the rough side and finish the edge with the smoother side to create the perfect cutting edge.