but what makes lapping films unique is ultra-fine versions

Mathematically verified radial-convex shape of the outer surface allows you to set the sharpening angle of only 7

Double Clamps securely hold a blade of any shape

The CBN-bearing plate contains evenly distributed CBN grains with resin bonding

All Venev stones use FEPA-F grit classification

belgian blue whetstone kme bestseller but what makes lapping filmsBelgian Blue Whetstones (BBW) are used for finish or pre finish sharpening on KME or Hapstone knife sharpeners. Belgian Blue Whetstone is mined in the Ardennes mountains in Belgium. BBW is natural slate with a high garnet content. BBW stones are universal, and can be used to sharpen knives of any steel. How to use Belgian Blue Whetstones should be used with water. All that is required is to wet the BBW surface. There is no need to immerse the stone.