Tacray MP1 Titanium Multitool Pen – Mini EDC Pocket Pen with Replaceable Tool Heads, Box cutter, Tungsten Tip, Screwdrivers, Pencil & Stylus for Everyday Carry (Grey)

Behold! bits you can use in the tool! And if it's too expensive or hard to obtain, you can mod it like me, i bought an infinite pen head and it pits into the companion bit adapter.