ONGROK | 5-Piece Herb GrinderONGROK 5 Piece Herb Grinder Built Cold. Turns Smooth. Grinds Hard. This is a tool, not a toy. The ONGROK 5 Piece Grinder is cut from solid aircraft grade aluminum and engineered to do one thing perfectly: deliver the exact grind you want every time. Heavy in the hand, smooth on the turn, dead serious about performance. The flower shaped teeth let you dial in texture depending on how you smoke, vape, or cook. The turn quick lock snaps open fast, the