For complete sharpening care, there's the Combo Coticule (Blue and Yellow) 6 x 2", Select Grade. 

FEATURES

• Blue coticule: 4000 grit 
• Yellow coticule: 8000 grit (without a slurry), 6000 grit (with a slurry)
• Can be used wet or dry or wet with a slurry stone
  
• Slurry sold separately 
• Blue coticule sharpens dull blades; yellow stone provides finishing touches
• Easy to use and suitable for beginners 
• The difference between the standard and select grade coticules lies only in their appearance. Both stone grades have identical sharpening qualities. . 

TO USE

• Very hard stone (harder that most artificial wet stones) but will still need lapping before first usage and from time to time.
• To lap: Use a lapping stone (i.e DMT-8C 325 coarse diamond sharpening stone or Norton Lapping Stone) or with sandpaper on a very flat surface (i.e. glass). 
• Tip: the long edges of the stone should be rounded slightly with a lapping stone or sandpaper. This way the risk of denting the blade in a normal honing motion across the stone is greatly reduced. 

MATERIALS

• Natural sharpening stones
• Note: These are two natural stones and each stone is one-of-a-kind. The photo is for illustration purposes ONLY, and might not accurately represent the Belgian Blue and Yellow Coticule stone you will actually receive. 

SPECS

• 6 x 2" (150 x 50 mm)
  

COUNTRY OF ORIGIN

Quarried in Belgium