Bandsaw blades by Olson, 80" fits Sears Craftsman® 12". 93-1/2" fits Delta® and Rockwell® 14" models. Hard edge flex back band saw blades designed for industry and the professional craftsman. These are not to be confused with light duty standard blades. Thicker gauge steel provides for longer blade life. Tooth hardness 62-63 RC. Back hardness 28-32 RC for maximum flexibility.