ASNOMY 14Pcs TCT Hole Saw Kit, 1/2"-2-1/8"Inch Tungsten Carbide Tipped Hole Cutters Set Heavy Duty Hole Saw for Metal Stainless Steel Iron Wood Plastic, with Extra 2pcs Pilot Drill Bits - Amazon.com
ALFRA 1-1/2" Nominal MBS PRO SS Round Hole Saw - Panel Punching
Milwaukee 1-1/2 in. Hole Dozer Bi-Metal Hole Saw with 3/8 in. Arbor & Pilot Bit 49-56-9665 - The Home Depot