For chip repairs, where you have to remove a lot of metal, I use high angle honing, edge trailing on a diamond plate.
Hold the razor just off 90 degrees, about 75-80 to the plate, alternating sides to grind off the damaged material. Use lite pressure the metal is thin and is removed quickly.
It does not hurt to measure with a pair of calipers, just past the damage and mark a straight line with a sharpie, so you get an even, straight edge and stop short of your sharpie line. The final removal should be done on a low grit stone.
Then switch to a low grit stone 600-800, again high angle honing until the edge is smooth. Then joint the edge a couple laps and hone on the 800.
The trick is to remove a minimum of material and to get the edge straight and even from the heel to the toe.
When you remove a lot of steel and there is impact damage, the damage to the steel always goes deeper than the chip or folded steel. So don’t be surprised if you may get a good solid edge after honing but the edge fails, (micro-chips) after a couple shaves and stropping, where you are flexing the edge.
You will just need to hone it again from an 800-1k and sneak up to solid steel.
With straight edges it is not too complicated, but with curved smiling edges it can be, because you also want it to look right, so measuring and marking a line is more critical.
Either way cutting to a line is always a good practice for minimal steel removal.
Hold the razor just off 90 degrees, about 75-80 to the plate, alternating sides to grind off the damaged material. Use lite pressure the metal is thin and is removed quickly.
It does not hurt to measure with a pair of calipers, just past the damage and mark a straight line with a sharpie, so you get an even, straight edge and stop short of your sharpie line. The final removal should be done on a low grit stone.
Then switch to a low grit stone 600-800, again high angle honing until the edge is smooth. Then joint the edge a couple laps and hone on the 800.
The trick is to remove a minimum of material and to get the edge straight and even from the heel to the toe.
When you remove a lot of steel and there is impact damage, the damage to the steel always goes deeper than the chip or folded steel. So don’t be surprised if you may get a good solid edge after honing but the edge fails, (micro-chips) after a couple shaves and stropping, where you are flexing the edge.
You will just need to hone it again from an 800-1k and sneak up to solid steel.
With straight edges it is not too complicated, but with curved smiling edges it can be, because you also want it to look right, so measuring and marking a line is more critical.
Either way cutting to a line is always a good practice for minimal steel removal.