Milwaukee 49-56-0207 3-7/8 in. Hole Dozer Bi-Metal Hole Saw
Amazon.com: LifeIdeas 6 1/4 inch Hole Saw, Bi-Metal & Heavy Duty Hole Saw with Arbor Mandrel, Hole Drilling Cutter for Cornhole Boards, Metal, Drywall, Plasterboard, Wood and Plywood : Tools & Home
Bi-metal Hole Saw, 13 Pcs Hole Saw Set With 13 Mandrels, 13 Hex Key And 13 Springs, Saw Blade 18-75mm For Drilling Plastic, Pvc, Wood, Fiberboard, Sof | Fruugo NO
Uxcell 6-8/64" (155mm) Bi-Metal Hole Saw High Speed Steel Hole Cutter for Metal Wood PVC - Walmart.com
Morse Advance Bi-Metal Hole Saw - Jag10 Tools and Supplies