1-7/16" X 2" nACo (Nano-Composite) Coated Blue Annular Cutter BoltsandNuts.com Size 1-7/8"

Size 1-7/8"

The keys are made from 8660 nickel chromium molybdenum steel that's heat-treated to 54–58 HRC

0x35 Hex Flange Bolt Smooth Head Off Road Moto Hardware Zinc - 4PCS

Part Number DWTMR112-10X1

It is recommended over the straight-flute for more difficult materials

1-7/16" X 2" nACo (Nano-Composite) Coated Blue Annular Cutter BoltsandNuts.com Size 1-7/8"Product Description nACo Blue Coated Annular Cutters provides prolonged tool life compared to traditional HSS. Cuts difficult materials, including steel, cast iron, heated and stainless steels. m2 High Speed Steel. Cuts only necessary material for fast, efficient, quality hole making. 3 4" Weldon Shank fits most magnetic drill presses. Also called magnetic drills or mag drills. For use with magnetic drill press only. Do not use with a standard hand