saw blade (ok8075) (1)65 Mn alloy steel (2) 2 edges teeth or punch teeth can help cut the wet wood saw blade(ok8075)SIZE:12"18"21" 24" 30" 36"We are Zhejiang Yongkang Pingda Tools Co., ltd, a manufactory who is very professioal in producing all kinds of garden tools,so if you want to more details, pls contact us. saw blade (ok8075)