Starrett Bi-Metal Deep Cut Hole Saw with Arbor and Abrasion Resistant HSS Teeth - Ideal for Cutting Metal, Steel, and Wood - 1" (25mm) Diameter - ADCH0100: Amazon.com: Tools & Home Improvement
Amazon.com: 7 Pcs TCT Hole Saw Kit, Tungsten Carbide Tipped Hole Saw Set Heavy Duty for Stainless Steel Hard Metal Wood Plastic,with Extra Pilot Drill Bits : Tools & Home Improvement
Drill America 2-1/2 in. Carbide Tipped Hole Cutter with 1 in. D of Cut and Auto Ejecting Slug CTH2500 - The Home Depot
MXqs SuperXcut Xtra DEEP 300 | MandreX - Smart Tools
3 Inch Deep Hole Saws - Rogue Fabrication
2 inch Diamond Hole Saw for Concrete Masonry Cinder Blocks Stucco Granite Quartz Marble Core Drill Bit Heavy Duty Dry or Wet Drilling Standard Shank Extra Deep Depth of Cut - Amazon.com