Bought this to help with several projects I work on: sheds, Poolside fountain house and gazebo. Everyone has a blink, of course. I chose to spend money on copper because I like the way it looks and there is a serious risk of corrosion as I live in a coastal area. I have a small brake to make bends in copper and I use this sheet metal hammer to stop and set the blinking. This hammer is excellent and I am happy with it. Perfect balance and weight. The square head is designed for working with metal. Every professional or hobbyist will be happy about it.