Goodcook 4.5″ Serrated Utility Knife For $3.52 From Amazon This was selling for $7.75 yesterday and is now the lowest price in the past three years from Amazon. Serrated utility 4-1/2″ “never needs sharpening”. Double serrated, high polish stainless steel blade. Dishwasher safe. Good Cook tools and gadgets Dishwasher safe.