Irwin Bi-Metal Knife Blades

Irwin Bi-Metal Trapezoid Knife Blades are designed with the best features of two metals electro-welded together. The edge of the blade is made from high-speed steel, providing up to 3x longer life during user trials on heavy-duty materials like plasterboard, drywalling, roofing, insulation, and flooring. The blade is also heat-treated to greater hardness and a sharp edge, so it stays sharp for longer.

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