Board Thread:Boruto Discussions/@comment-33953813-20171217171254/@comment-1458758-20171218171745

Thekillman wrote: It's no different from Danzo's wind-release-enhanced blade, just in a slightly more convenient form. Hell, i think we had chakra blades all the way back in Part 1 during the Chunin exams.

I don't know about that, but Chakra Scalpel is basically creating a blade from chakra, so this is basically just removing the need to perform an actual technique to do it. As noted though, its extremely inefficient in its chakra consumption.