Bashing the neck of the cartridge with a rock would be a better "bullet puller".

They seem to have taken several reasonable ideas, combined them into that miniature little thing, and in doing so made each good idea into a marginally useful (or even useless) shell of it's former self. That itty bitty ferrocium rod and micro scraper? Taking apart a pencil sharpener and calling what's left "a blade"? Labeling the right angle edge of the thing "a scraper"?

Looks more like something you'd find in a Cracker Jack box to me.