[@GrafRoy Zeppeli] Okay this seems a lot better. Now here's the deal: 

-Normal output, it's fine. It's not strong so even if it lasted longer I wouldn't care all that much. One hour is fine, keep it. 

-Medium seems fair, as strong as a chakra enhanced weapon. Seems good. 

-Okay, here's the deal with this. Something that can cut through anything or pierce through anything with rare exceptions is insanely high tier. Lust from FMAB or The X-Axis from Bleach can attest. 5 Minutes is loooooong. I recommend putting it into post, and something rather short given it makes you cheese through any skill requirement. It should probably have trouble with chakra enhanced weapons, sure it's stronger but can't cheese through through. Plus it would likely cut you even more chakra to get through those. 

Yeah I'm a bit uptight with this but cutting through almost anything is pretty damn stronk.