Diamond Whetstone Benchstone 220

At DMT, black stands for the extra-coarse grade with a 220 grit. Diamond Whetstone Benchstone - The benchtop diamond sharpener from DMT remains permanently flat thanks to the stainless steel backing plate. This makes the sharpener suitable not only for knives, but also for tools with straight cutting edges, such as chisels. The circular indentations prevent the sharpener from becoming clogged with grinding dust. Thanks to the DMT color code, you can always tell which grit the sharpener has. The sharpener can be used dry or with water. After use, wet sharpeners should be dried before being put back in the plastic box.