Bosch 7/8-in Bi-metal Arbored Hole Saw in the Hole Saws & Kits department at Lowes.com
Bosch 4-1/8 in. Diamond Grit Hole Saw HDG418 - The Home Depot
Bosch 2608900434 Expert Tough Material hole saw 70 x 60 mm
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