Indexable insert types - photo

[Saltfever]

edit . . . And nothing is a standard, only a suggestion. Every manufacturer puts their own twist on each insert. You can buy five different APKT inserts from five different manufacturers and they'll all be completely different.

Well yes and no. There are both ANSI and ISO standards and while the geometry is defined, the variability is so great it appears to be chaotic. Note that this article was written by a PhD! So yes . . .