I bought these PEX cutters to install a water system on our van. As I figured they would be used to install our little plumbing system one weekend, I figured it might be worth sacrificing some performance and saving some money. Well, these cutters cut through 1/2-inch PEX like warm butter without deforming the pipe. I don't know how long they will last but they were perfect for our short term needs. Great value for us.