ToolWhat it doesBest forDownside
Ceramic rodRealigns and lightly refreshes any steelThe default rod, Japanese knives includedDrop it on tile and it's done
Steel rod (classic)Realigns softer edges fastWestern 56-58 HRC knivesCan chip hard Japanese steel
Tapered ceramic rodHoning plus serrated-tooth serviceHouseholds with a bread knifeSlower per-tooth work on serrations
Stone touch-up insteadTen light strokes on #1000-3000Hard-steel puristsNeeds the stone out and wet