Milwaukee 49-56-0743 4-1/8 in. HOLE DOZER Carbide Teeth Hole Saw
IDEAL Carbide-tipped Arbored Hole Saw Set (8-Piece) with Hard Case in the Hole Saws & Kits department at Lowes.com
DEWALT ELITE SERIES Metal Cutting Carbide Hole Saws 2 9/16" DAH42916 from DEWALT - Acme Tools
Drill America 1" Carbide Tipped Hole Saw/Cutter with 1" Depth of Cut, CTH Series: Amazon.com: Tools & Home Improvement
Amazon.com: Klein Tools 31872 Heavy Duty Hole Cutter Kit, Includes Carbide Hole Cutters and Pilot Bit in Rust-Proof Molded Plastic Case, 4-Piece : Tools & Home Improvement