NANIWA MV-502/510 - Combined whetstone #220/#1000, Vietnam

The Lobster Multi Stones series is a budget model, manufactured by Naniwa Abrasive. 
You get a quality tool, by paying less. 

The company makes two classic combinations: 

# 220/1000 — Removing chips and removing traces of rough processing 

# 1000/3000 — Maintaining a good cut, without the need for a large removal of steel

These are traditional water stones, which are recommended to soak in water for up to 10 minutes before use. 
They are subject to normal wear, but the number of sharpening, until completely worn out, will amount to hundreds of restored knives. 
The purchase will work out the invested funds, and will serve as a useful training apparatus. 

If the priority is to get the practice of manual sharpening, with an exercise on inexpensive knives, this choice is justified. 
Perhaps the next step will be the acquisition of really fast & durable Chosera Professional. 
Or it will come to understand that professional service is better, but in home will have a sharpening tool at hand for periodic training and keeping the home kitchen blades arsenal in working condition. 

In any case, the indisputable advantages are the full size, sufficient performance, as well as “two in one”, at an attractive price. 

Before storage, it is necessary to thoroughly wash & dry the whetstone, away from the sun, performing if necessary the leveling procedure using a special dressing stone.