it's designed for cutting both dry hard and soft wood and also can be used to cut shaving board,wood fible board,joinery panel. Tooth model:ATB The specification : Diameter :110mm-500mm(4"-20") Body thickness: 1.5-3.0mm Cutting wide:1.8-3.2mm Hole dimater : 20,20/25.4,25.4/30mm Tooth number :20T,30T,40T,60T,80T,100T,120T Advantage : 1. Carbide tipped cutting teeth, bright polished surface, shot ...