Spyder 1-1/2-in Carbide-tipped Non-arbored Hole Saw in the Hole Saws & Kits department at Lowes.com
Amazon.com: WOWSUPM 4-1/2” Carbide Grit Hole Saw Cutting Air Brick Stucco Hardy Plank Drywall Cement Board with Pilot Drill Bits Up to 3X Long Life : Tools & Home Improvement
Amazon.com: HLOFIZI 4-1/8 Inch Carbide Grit Hole Saw for 4 Inch Recessed Lights, Dryer Vent Hole, Cutting Through Stucco, Ceiling Old Plaster, Drywall, Cement Board with 1-1/2" Depth, Up to 6X Faster :