Milwaukee 1-1/2 in. Hole Dozer Bi-Metal Hole Saw with 3/8 in. Arbor & Pilot Bit 49-56-9665 - The Home Depot
Amazon.com: Koopi 1 inch Hole Saw with Arbor, Bi-Metal Hole Cutter for Easily Drilling Wood, Plastic, Plywood, Drywall, Thin Metal - 25mm Diameter : Tools & Home Improvement
VEVOR Concrete Hole Saw Kit, 1-2/11", 1-3/5", 2-9/16", 3-5/32", 3-15/16" Drill Bit Set SDS Plus & SDS MAX Shank Wall Hole Cutter w/a 4-1/3" Connecting Rod for Concrete, Cement, Stone Wall, Masonry
Bosch Carbon Arbored Adjustable Hole Saw Set (7-Piece) in the Hole Saws & Kits department at Lowes.com