Drive sockets are an essential component to any Vita-Mix blender because keeps the blade intact in the case of if it gets blocked while rotating. The Vita-Mix 891 Drive Socket Clutch also helps in the reduction of blending noise, which anybody can appreciate. However, it is a wear item, which means that it needs to be checked periodically and replaced if there are signs of nicks, cracks or gouges in its outer surface. This product includes one drive socket, an Allen wrench and instructions and fits all machines, including Touch & Go (35000 and 39000 series).
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