Fisher Barton’s TERMINATOR blade is 40% harder than standard blades through our patented MARBAIN® technology. Heat-treating TERMINATOR sets this blade apart from the rest of the industry! MARBAIN is material resulting from an exclusive, patented heat-treating process. All blades are heat-treated, but no blade in the industry can advertise the blade hardness offered by Fisher Barton. Our blades register 48–52 on the Rockwell “C” scale.