Most of the thread snips are built to last. However, there are some which tend to wear out faster than others. There are a few factors that determine how long thread snips are going to last. For example, their built material, type of blades, and a mechanism determine that. Replaceable blades allow you to make your thread snips as good as new in a matter of minutes. Metal construction, which is preferred by many, ensures that the product is strong and reliable, which you can’t always tell about plastic ones. Lastly, the ball-bearing mechanism is incredibly stable and durable.