Its not unusual to find pitted cutters on vintage planes. The question becomes “can you save them”?
In some cases its possible. There are two approaches. One is the ruler trick. by applying the ruler trick, many of these cutters become usable again.
Another approach is use it for a jack. Put a camber on it and sharpen it up. But first take as much of the pitting out as you can.
Then camber it.
Then sharpen it
Then use it!
