The Shapton Kuromaku Professional Ceramic Whetstone Sharpening Stone, Purple 30000 grit is a rare gem in the sharpening world. 

FEATURES

• 30000 Grit, 0.48 micron
• Micro Fine
• Purple storage case included also serves as stone holder
• Ideal for extreme polishing 
• Undergoes a meticulous 20-hour crafting process 
• Always clean and dry stones before storage 
• Remove and discard foam protection before use. Do not store stone with foam.
• As with all water hones, Shapton water-stones require periodic re-flattening.
• NOTE: Shapton recommends pre-soaking stones only before the first use for a maximum of five minutes. After the first use, splash water as needed. They also suggest beginning with the side that does not contain printing however both sides can be used for sharpening.

MATERIALS

• Ceramic Whetstone
  

SPECS

• Working surface: 8.25 x 2.75 x 0.6” (210 x 70 x 15 mm)
  
• Case/holder: 8.7 x 8.7 x 1.4” (220 x 220 x 35 mm)
• Weight: approx. 500 g 

COUNTRY OF ORIGIN

Japan