The small Mud Shredder is an indispensable tool for shaping and carving leather hard clay. For years you could find a tool like this at the hardware store. This type of rasp was originally designed to be used on wood, but clay people, sculptors, and auto-body repairmen discovered how well the blade worked on other materials (like clay and auto body filler). The problem was the handle design. The handle would trap clay and get clogged up. This open blade shape doesn’t trap the waste clay in the tool and doesn’t frustrate the user. It also offers a comfortable ergonomic grip. An added benefit is the tool mark, it leaves a handsome textured surface in the clay.