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The Kai Serrated Knife Sharpener is a small manual pull-through tool for serrated edges. Two ceramic bead rods sit in a V at a fixed 16-degree angle, and you draw the blade through the slot to refresh the scallops. It handles wide and reversed scallop serrations only, so fine-tooth bread knives and plain edges are out. It suits anyone with a serrated bread or tomato knife who wants a quick touch-up without learning whetstone technique. Against rod-and-stone sharpeners it is faster and more foolproof, but it cannot reshape a damaged edge or set a new bevel.
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Lowest price we've seen: $14.95 on Nov 10 at The Kitchen Clique. Tracked across 3 stores since Nov 10.
Ratings are solid but few. Owners who use it on bread and tomato knives say it brings back a bite in a few strokes and is easy to hold steady. The main complaints come from buyers who tried it on fine-tooth or plain edges and found it did nothing.
