• Best For: Granite fabricators and installers who need a 1-inch-diameter wet-drilled opening.
• Highlight: Premium-grade granite bit in the 1-inch diameter, one step below the 1-1/8-inch MK-290GW (158920).
• Expert Note: Drill wet, with water on the bit; this listing states only the 1-inch diameter, so verify the thread against your drill before ordering.
