The Norton IM313 multistone is a classic tool that has been in production, in various forms, for nearly a century now. The IM313 holds three stones in an oil bath that allows quick sharpening with oil stones, with no mess. The Norton IM313 is a favorite of restaurants and woodworking shops. Unlike water stones, which require frequent flattening, the oil stones in the Norton IM313 will wear very slowly. The water stones will have the advantage of sharpening more quickly, but this advantage is by far outweighed by the time that you will spend flattening them.
The Norton IM313 Multistone is sold with Coarse Crystolon, Medium Crystolon, and Fine India stones and is very popular with woodworkers and chefs alike. Many people will chose to replace the coarse stone with a Hard Arkansas stone. We feel that the coarse Crystolon stone is superflous in a wood shop because fine tools will never be so dull as to require a coarse stone. Hard Arkansas is a natural stone that is becoming hard to find, and commensurately expensive, however; we don't think that any other oil stone does as good a job of putting the final edge on a blade. The Norton IM313s that we sell come with a pint of sharpening oil.