610mm log saw blade is for living paper cutting,we could supply you all the basic size: 610mm,810mm,870mm,1000mm, 1200mm and customized type is available. Details: Basic size: 610x68.3x3.8mm/610X68.3X4.76mm Material: Cr12MoV, D2 Hardness: 58-62HRC Roughness of surface: Ra0.2-Ra0.8