I own/collect several multitool brands (Gerber,Leatherman,SOG,Schrade) and by far I am happiest with SOG multitools.  The Gerber tool's finish is showing some corrosion and the small flathead screwdriver's tip broke. The Leatherman tools are good (Juice S2 and Kick), but are overpriced (Juice S2).  Leatherman is the granddad of multitools and likely offers the widest variety of multitools, but comparative shopping is a must.  The Schrade tool is awkward in that some of the tools lockout and some don't lock at all.  I am sure it is because some don't require lockout to work, but my opinion is that they should all lockout. I have two SOG multitools (Power Plier and a smaller version)and am very impressed with the heavy duty, anti-corrosive finish, precision, and function of all the instruments.  The smaller version has some instruments (phillips screwdriver and a file) that don't have the shiny,chrome-like finish, but still perform well and show no sign of corrosion. All the instruments lockout and work as expected. I've noticed that once any multitool is used for a repair it is not long after that one gets to see how the metal finish endured the stress of the work.  I consider this one of the litmus tests of all multitools. Like I previously mentioned in the section about the Gerber tool, some brands just don't stand up well to duress and one will find that the manufacturer actually has a disclaimer that warns against using the tool for what I consider it's intended purpose:  on-the-spot, contingency repair.  I highly recommend the SOG multitools for that type of use.