Here's a Snap-On combination wrench next to a Craftsman. We asked Tom about the differences between the two. Snap-On tools are much, much more expensive than Craftsman. Why would someone pay the premium price of Snap-On? "The biggest difference is in the ergonomics," he said. "Look at how the Snap-On is slim and smooth. It just fits your hand better. Also, note that the 5/16 Snap-On is longer than the 3/8 Craftsman, which is a bigger fastener size. The longer Snap-On wrench means it's got more leverage and it's easier to get nuts and bolts tighter with a longer wrench. Snap-On wrenches are also stronger, so they break less often."