The agitator in your drink mixer is that small part that turns hard ice cream into smooth, creamy milkshake. Naturally, when the agitator in your drink mixer breaks, it will seriously affect the output of your product. Before you buy a new drink mixer, consider doing a little DIY! Installation is easier than you think, and your bottom line will thank you. Shop our selection of drink mixer agitators to find the exact part for your Hamilton Beach, Vitamix or Waring products.