Coming late to this party, but THANKS!
I have some ever expanding drifts of irises that need attention, and digging and dividing was not something that I wanted to do. (One woman (with limited garden help), large garden, prone to migraines in the heat....when the irises need dividing.)
And curiously enough, cleaning up my shed I recently came across a still-in-the-package hori hori knife, which I had bought some time ago...and couldn't remember why I had bought it.
Now I've got a definite use for it!