Cutting Depth : 1-1/2" ; Electron beam welded M3 high-speed cobalt steel teeth have a positive rake and 4-6 variable pitch. These features provide fatigue resistance, better chip clearance, less vibration, and less heat. This hole saw cutter is designed to cut holes in plastic, fiberboard, wood, plywood, or any machinable metal including: stainless steel, pipe, nail-embedded wood, etc. High alloy steel body design offers superior durability and is shatter resistant. WARNING/ADVERTENCIA: CANCER AVOID INHALING WOOD DUST CANCER EVITE INHALAR POLVO DE MADERA www.p65warnings.ca.gov , www.p65warnings.ca Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.