The venerable Benchmade 556 Mini-Griptilian. One of the regulars in my EDC rotation. The mini-grips are a great knife in any flavor. They come with different blade steels and shapes, different colors, and different sizes. One thing they all share is Benchmade's patented Axis lock, which in my opinion (as well as many others) is one of the strongest lock mechanisms out there. Some people are turned off by the "plasticy" handles, especially for the price, but you'd be hard pressed to find a harder working knife. These things will take everything you can throw at them and more. Definitely something you should check out or have in your stable.