A lot of kitchen knives. I have a chef's honing rod, which I use while I work, but after a while, you actually need to sharpen the knife to get the blade back into shape. I have a set of 3 warthog sharpeners with 3 different grits. They work well for this purpose, except the course grit, which is the one you use the most, does not last very long, so I was hoping to get something a bit bigger and more robust with more diamonds.
I have read bad reviews of the cheap shit from China. The course stones loose their diamonds, and the fine stones are contaminated with rough patches and bigger stones, so the final result is not perfect.
The Sharpal and DMT stones get better reviews, but cost north of 1K per stone, and I'm not sure if they are worth it.
I hate cheap wet stones, messy, time consuming and the stone wears quickly and looses its shape over time.
Hence, i was hoping that perhaps there was something "in between" a high quality knockoff 400grit stone for a few hundred buck that will last beyound 100 knives.