Would like to see a pic of your Dutch perennial divider. What the heck is it?
My perennial divider is either a sharpened shovel or a ginsu knife. Really, the darn knife never dulls! And the blade construction, sorta having teeth, works excellently.
This time of year especially, having multiple pairs of pruners is advantageous. When cutting spent flower stalks, you don't have to disinfect between plants, just use a different pair. Since I grow a lot of species lilies that are more virus susceptible, sanitation is more important. I've had some hybrids since childhood, and they surely harbor some virus(es), even though they don't show it.