主权项 |
1. A blade assembly comprising:
a central blade support supporting a central blade; a plurality of cutting blades stacked on both sides of the central blade to form a stack of blades, the stack of blades secured together by fasteners, the central blade and each cutting blade comprising a plurality of teeth, the plurality of cutting blades comprising an outermost pair of blades, the outermost pair of blades smaller in diameter than blades directly adjacent to the outermost pair of blades. |