Ardennes-Coticule
REF
Belgian Blue Whetstone (BBW) with 2 rounded edges.
For sharpening U-shaped gouges
The grit size is approx 4000
Sharpening is always done with water.
Simply moisten the BBW: the stone must not be immersed.
Tips :
BBW is a non-porous stone, so it cannot become clogged.
Only use water and not oil when sharpening. Oil should only be applied to porous stones to prevent iron particles from depositing in the pores.
Longevity of the stone: the longevity of the stone depends on how it is used. The more intense the use, the quicker the stone will wear out. Generally speaking, stones last 20 years with normal use.
Specific References
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