Amazon.com: Hougen 12006 12,000 Series Annular Cutter Kit 5/8, 3/4, 7/8, 1, 1-1/8" 2-Inch Depth of Cut 3/4-Inch Weldon Shank for Magnetic Drills : Industrial & Scientific
Amazon.com: Hougen 12136 1-1/8" X 1" Rotabroach "12,000-Series" M2 High Speed Steel Magnetic Drill Annular Cutter (for Use with Pilot 10527) : Industrial & Scientific
Amazon.com: Hougen 17001 RotaLoc 17000 Series Cutter Kit : Tools & Home Improvement
Hougen 12011 31/64" X 2" "12,000-Series" Annular Cutter
Hougen 12005 Cutter Kit -12005
Hougen - 10 Piece, 5/16 to 3/4″ Cutter Diam, 1/4″ Cutting Depth, High Speed Steel Annular Cutter Set - 03744505 - MSC Industrial Supply