Bosch 1-3/8-in Bi-metal Arbored Hole Saw in the Hole Saws & Kits department at Lowes.com
BOSCH, 3 1/2 in Saw Dia., 5 Teeth per Inch, Hole Saws - 802GM8|HBT350 - Grainger
Hole Saws - Power Tool Accessories | Bosch
Amazon.com: Bosch Professional 2608594183 8-Piece Tungsten Carbide Hole Saw Endurance for Heavy Duty Universal Set (ØØ 22/25 / 35/40 / 51/68 mm, Drill Accessories) : Tools & Home Improvement