07-29-2020, 10:50 AM
Old sharpening knowledge 
When you look straight on the edge when you have the cutting edge pointing at you - you should se a black straight line, if you se this line, your edge are sharp.
A dull edge are white when you look at it in the same way.
When you look straight on the edge when you have the cutting edge pointing at you - you should se a black straight line, if you se this line, your edge are sharp.
A dull edge are white when you look at it in the same way.