Lenox Bi-Metal Hole Saws - Long Lasting, Fast Cutting and Versatile - DURABLE - TUFF TOOTH design is reinforced to cut stronger and last longer. LONG LASTING - Patented VARI-TOOTH design resists tooth strippage. STAYS SHARP - High speed steel teeth resist breaking and offer extended life. WITHSTANDS HIGH TORQUE - Thick backing plate with holes for drive pins resists damage due to high torque.
