This stone is mostly an intermediate step, as jumping straight from 5,000 to 12,000 won’t produce good results. Similar to how using progressive grits of sandpaper requires less labour to produce a good polish, 8,000 grit buffs out scratches from rougher stones, and makes finishing your blade on finer stones an absolute breeze. If your blade is in good shape, this is a good stone to start with.
Naniwa Specialty stones are softer than some, so they require more careful and frequent flattening. They're a great budget-friendly option and will last a lifetime of casual sharpening.
About Naniwa -Naniwa is the biggest and best sharpening stone manufacturer in Japan. Their stones are among some of the highest quality in the world, good for both professional and amateur. They make a wide range or grits and densities, so you can choose the perfect stone for your needs and budget.