The new EDC Keychain Pen from TT PockeTTools pushes the limits of portability in an EDC pen. Measuring in at a mere 9mm in diameter and only 3.25” long, it rides unnoticed on your key setup. When you need to get to it, the quick detach design makes it especially easy to access. You can unscrew the body to completely detach from the cap and your keychain, letting you write freely. Since the cap stays secured on your keys, you won’t have to undo a pesky split ring just because you have to use the pen. No need to worry about losing the pen when carrying it either, thanks to its heavy-duty threading and rubber o-ring that prevent the cap from opening on accident. Its body features grooves for some extra grip and design flair and also accommodates standard D1 size refills. Available in brass, aluminum, or copper, this handy little pen is built to last. Back the project to get one for yourself via the Kickstarter link below.