An often-overlooked entry into the keychain size MT market is the SOG Crosscut. I was talked into buying one from ‘Sharper Image’ or some such mall shop many years ago, and as overpriced as it was, I would have paid it again. The original Crosscut was an absolutely excellent tool. It has been replaced by the Crosscut 2.0, with only a few refinements, and a fairly major drop in build quality since production switched from the United States to China. While it’s not what it used to be, it’s still an excellent option for keychain carry.
The SOG Powerlock has been out for quite a while and has remained the company's flagship. SOG is a company that is slow to make changes in their tool line. They feel that what they make is darn good and they make changes to their products when they feel the time is right. SOG took a second look at their very popular Powerlock model, made a list of all the pros and cons they have noticed over the years and decided to give this old gal a facelift. Some of the things that SOG focused on with this remodel were the gears that drive the compound leverage of the pliers, new locking system for the tools and the ability to keep their tools from clumping when finding the tool you need.
The first thing you notice when handling the Powerlock 2.0 is the new plier head. SOG worked on a collaboration effort with Paladin tools to create a multitool line for the telecom industry. Those tools became a testing ground for what would become the new Powerlock design.