Now the kissaki is almost finished. Don't worry at this stage
if it isn't perfect as you can shape it better after heat treatment.
Grind the shinogi-ji (face between ridge and spine) down so
that the widest point of the blade will be the shinogi.
Don't worry about grinding the shinogi-ji down to the tang too
far. The tang will be shaped later.
Finish the shinogi-ji at the kissaki by raising the grinder
as you approach the kissaki. This gives the blade a more traditional
look.