Laura Kampf's Zippo Case Bit Holder and Keychain Driver - Make:
7x Hex Shank Screwdriver Bit Holder Extension Bar Tough Keyring Keychain Driver | eBay
Engineer Inc Bit Pit, a Keychain-Sized 1/4″ Hex Screwdriver Bit Dock
Mini Double Bit Driver Keychain by blecheimer - Thingiverse
Peter Neubauer on X: "My newest #EDC (every day carriage) toy : welded a hex bit driver to a screw, lightweight and fits any bit. Use the carabiner for extra power. Now
7x Hex Shank Screwdriver Bit Holder Extension Bar Tough Keyring Keychain Driver