Large wooden flat products can use HSS planer TCT planer or spiral cutter head for planning .The former two in the incision passivation will be noisier. The latter cutting sound small, a longer use life and the wood surface is smoother. In particular, the performance is more excellent in the hardwood.The advanced woodworking technology of Europe and the United states are all using spiral cutter head to ensure the appearance of each work piece are the same size. Avoiding the outer diameter deviation after sharpening.Low-noise processing and no tearing of the wooden surface to promote the wood surface is smooth.