One thing you do need to realize when you are trying to purchase a good multi-tool is how much the quality of manufacturing can vary from brand to brand. You need to take a close look at the hinges as well as the way the knife locks. You want to make sure those parts of the multi-tool work well, are reliable and made with high-quality products. You also want to make sure the multi-tool itself is easy to hold, and also easy to take along with you. The more high-quality the materials manufactured into your multi-tool, the more durable and reliable it will be. Make sure you take some time to look at the multi-tool, play around with it, and ensure that the important parts of the tool are made from high-quality materials.