NEW Starrett deep cut bi-metal hole saw 2 1/2" 2.5" 64mm extra cobalt arbor wood | eBay
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
Extra Deep Hole Saws
45mm x L165mm Mandrex SuperXcut TCT Extra Deep Hole Saw - Armac Products
Amazon.com: Spyder 600827 Deep Cut Hole Saw with 2" Diameter and 6-1/4" Cutting Depth : Tools & Home Improvement