When you need to work with clay (especially in tight places), using an SDS-Max hammer makes your job easier. Sometimes you can dig near a house, under a house, even next to utility lines, and you can risk just brushing off with a pick/axe and the shovel won't really get in. It has become an indispensable tool. I've had no problems with clay sticking to the shovel and I haven't found any instances of the shovel causing damage. They seem like the perfect combination of speed and security - why…