The most obvious feature of the Surefire Pen is its durability. The shaft is made from hard anodized aircraft grade aluminum, while the nib, pocket clip, and end cap are made of 303 stainless steel.
The result is a 1.8oz bruiser of a pen that will probably last as long as the written word.





My Montblanc developed a hairline fracture in the cap after only a few months of back pocket carry, and had to be sent back to the factory to be repaired. By comparison, in two years of serious use, my Surefire barely has a scratch on it – proof of the excellent hard anodizing used in its construction.
When you consider the Surefire costs about 1/3 the price of a Montblanc, and is made in the USA, it’s even more impressive.



I realized just how ludicrously tough the SF pen was a few months ago, when I visited a camping store in lower Manhattan. The owner showed me his own EWP-01, and how he practiced striking by smashing it over and over again into a 2×4. This is the second 2×4 he has gone through, and he told me he has also struck concrete blocks a few times- and chipped the concrete!

The other famous feature of the SF pen is its “glassbreaker” end cap, which is actually why I bought the pen in the first place. This ended up being rather ironic, as the glassbreaker is the least useful feature of the surefire pen — its just a 3/16” stainless steel ball bearing built into the cap, rather than a purpose built glassbreaker.
I went to a junkyard and tested it on some loose automotive glass and was unable to break the window. However, other people have managed to break windows with theirs when they tested glass still attached to a car, so the glassbreaker does work, just not very well.
Here it doesn’t work- if that car was under under water he would be dead.
http://www.youtube.com/watch?v=LePGf94tYaY
Here it works, although not as well as the Benchmade with tungsten tip:
http://www.youtube.com/watch?v=tfzdZyQOjAY
I believe that Surefire should either re-design the glassbreaker so that it works reliably, or they should remove it entirely. Unreliable tools can get people killed, and this glassbreaker does not jibe with Surefire's legendary adherence to high performance and reliability.
One simple way to improve performance is to replace the Stainless Steel BB with an ultra hard ceramic BB. Added cost per unit would be less than $1.
I pimped mine out by adding a silicone nitride ceramic BB to my end cap, and that worked much better.
Here's a photo from the prototype glassbreaker, which was just a ceramic BB in an aluminum rod. Notice the powdered glass from the impact.
