The Conical Shredder is indispensable for making longer strokes, and is good for texturing and working on rounded surfaces. Like the Small Shredder, it is also an indispensable tool for shaping and carving leather-hard clay. 
 
For years tools like this were available at hardware stores. This type of rasp was originally designed to be used on wood, but then potters, sculptors and auto-body repairmen discovered how well the blade worked with other materials, like clay and auto-body filler. The problem with these rasps was the handle design - the handle would trap clay and get clogged. Michael designed a new open-blade shape as well as a comfortable ergonomic grip. This shredder functions well, and doesn't frustrate the user by trapping waste clay in the tool. An added benefit is the tool mark, which leaves a handsome textured surface in the clay.