Starrett CT438 High Performance Triple Chip Tungsten Carbide Tipped Hole Saw 4-3/8 in. (111 mm) Diameter
Amazon.com: Xianglaa-Router bit, Carbide Tip Drill Bit Hole Saw 12-150mm Drill Bit Set Hole Saw Cutter for Stainless Steel Metal Alloy Drilling 1pc, (Hole Diameter : 111mm) : Tools & Home Improvement