Our Memento Mori Skull sintered in titanium and designed to be used as a 0.25" hex bit driver. This edition features a unique weathered and antiqued finish. Our skull beads fit a few strands of paracord and if properly tied so it is easily removed, can be used as a field expedient 0.25" hex bit driver. When slipped through a removable lanyard, this unique and handy tool can be used to hold 0.25" (USA) or 6mm (EU) hex bits as a pocket driver. A great companion for your favorite folders.