vanerepok Manual Bread Slicer for Homemade Sourdough Bread Versatile Hand Crank Bread Slicer for Sourdough Crusty Bread Etc Stainless Steel Slicers Adjustable Width for Homemade & Commercial Use

Amazon for $45. I have half a dozen “bread knives” ranging from 8” to 14”. None work very well. This little cheap contraption works very well. The family loves it. My brother, who bakes, bought one. https://a.co/d/0fMjxv7k