I was given one of those by a Korean friend years ago. He told me at the time, “Be very careful, this can cut you really bad!”
The first time I used it, I almost lost a thumb-tip.
I’ve got two in the house that I’ve never used since. Sometimes I see chefs on TV using them without a guard. Gives me the absolute willies :-)
-JT
Some of them come w/ a finger guard...like the one pictured.
I have a Kevlar glove I wear when using my mandolin. I’m with you. I watch the chefs on TV using them with no guards and going super fast, and it creeps me out.