This is an excellent example of a bad crimping and stripping plier. I say plier because I really can't bring myself to calling this a "tool". These hardware store quality crimp-n-strips will deflect, flex and even cut the heat shrink on expensive heat shrink terminals thus defeating the purpose of spending good money on great terminals. The make horrible terminations, meet no standards and you truly get what you pay for.
The biggest worry with el-cheapo crimp tools like this is the lack of pull out tensile strength you can achieve due to the very narrow cross section or thickness of the jaws. They also lack any sort of reliability in repeatable crimping.
The industry standards for determination of termination quality, including the ABYC, NASA, US Military, UL and other standards organizations, is a tensile strength pull test. This tool does not fair well here....