For those in the industrial and scientific fields who demand the best tools for their work, the Stanley Proto J3560 Pattern Service is a top choice. As a result of my tests I determined that this hand tool is incredibly durable and can hold up to even the toughest jobs.The ergonomic design ensures a comfortable grip, and the tool itself is impressively sturdy. However, the price point may be a bit high for some users. Overall, an exceptional addition to any industrial toolbox..