I've had my Fisher Bullet EDC in my pocket for years. For the cost for either of the pens mentioned, I just don't see the value. The Fisher pen can write on about anything and mine has gone through the wash, been stepped on, had tools dropped on it, run over, and I once dropped it briefly in a fire before I had a chance to knock it out with a branch. My pen is a tank.

If you want a keyring, the Bullet could be drilled for that. The cartridge itself is waterproof, so you would just need to be concerned with the interior and I don't think there's any harm as long as you dry it out if it gets wet via the newly drilled split-ring hole.

Other than fine scratching from constant contact with other metal items in my pocket, It's still in like-new condition after half a decade of abuse. You can have it when they pry my cold dead hands from it. <img src="/images/graemlins/smile.gif" alt="" />