Hole Saws & Annular Cutters

400+ products

Expected delivery: Wed, Nov 18

Hole saws and annular cutters make large, clean holes that a twist drill cannot. Electricians use hole saws for conduit and box knockouts, plumbers for pipe penetrations, and HVAC techs for refrigerant lines and duct. Fabricators and steel erectors use annular cutters in magnetic drills to bore structural steel. This section covers bi-metal hole saws, carbide-tipped hole saws for stainless and abrasive materials, diamond grit hole saws for tile and glass, arbors, pilot drills, and HSS and carbide annular cutters with ejector pins.

What to check before you order

  • Diameter. Size for the conduit, pipe or fitting, not just the nominal trade size. Check the fitting maker's hole size.
  • Material. Bi-metal saws handle wood, plastic and mild steel. Carbide-tipped saws last longer in stainless and fiberglass.
  • Arbor fit. Small hole saws typically use one arbor size and larger saws another. Annular cutters must match the shank on your mag drill.
  • Cutting depth. Thick material may need a deep cut hole saw or a longer annular cutter.
  • Speed and coolant. Run larger diameters slower, and use cutting fluid in steel.

Common questions

Why does my hole saw keep binding?

Binding usually comes from too much speed, too much pressure or packed chips. Back out often to clear chips, and keep the saw square to the work.

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