Review (2/5): tang pin is not embedded tightly enough.
The tang pin came out, and I needed to hammer those to embed them tightly. Now the bumpy parts on the tang pin that helps the tang pin holds onto with the blade is gone, and the tang pin can fling out anytime soon. It feels like I bought a balisong knife comb with a expiration date.
Before that happened, it was great and smooth.
Edit: it eventually fell off and now the bumpy part is way too polished to be hammered.