20mm Hole Saws | McMaster-Carr

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High-Speed Steel

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High-Speed Steel

Steel

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12 Products

Hole Saws

These standard saws have high-speed steel teeth to make circular cuts in wood, plastic, and metal. Often used to remove more material than drill bits, they help with tasks such as creating cutouts for doorknobs or cables. Attach them to a drill or drill press. An arbor with pilot drill (sold separately) is required.

1 5/8" Cutting Depth


Constant Set Tooth Style		Arbor with Pilot Drill

Steel Body—Saws with a steel body are also known as bimetal blades.

	Hole Saws								Arbors with Pilot Drill Bit with 1/4" Hex Shank		Arbors with Pilot Drill Bit with 11/32" Hex Shank		Arbors with Pilot Drill Bit with 3/8" Hex Shank		Arbors with Pilot Drill Bit with 7/16" Hex Shank		Replacement Pilot Drill Bits for 1/4", 3/8", & 7/16" Hex Shank
				Material
	Dia., mm	For Arbor Thread Size	Arbor Hole	Body	Tooth	Tooth Style		Each		Each		Each		Each		Each		Each
For Aluminum, Brass, Bronze, Plastic, Stainless Steel, Steel, and Wood



		20	1/2"-20	Threaded	Steel	High-Speed Steel	Constant Set	4556A12	00000	4066A76	00000	4066A205	000000	4066A78	00000	4066A62	000000	4066A86	00000

Hole Saw Kits for Sheet Metal

Lower cutting depths than standard hole saws make these saws less likely to rip or tear while making smooth, burr-free cuts in sheets. All saws are made entirely of heat-treated high-speed steel for cutting aluminum, brass, bronze, and steel. Attach hole saws to a drill or drill press with the included arbors.

				Material
	No. of Saws	Dia., mm	Cutting Dp.	Body	Tooth	Includes		Each
For Aluminum, Brass, Bronze, and Steel



		7	8, 10, 12, 14, 16, 18, 20	1/4"	High-Speed Steel	High-Speed Steel	3/8" Hex-Shank Arbor with Spring-Loaded Pilot Pin Two Extra 1/8" Diameter Pilot Pins Center Punch Hex Wrench Plastic case	4298A31	0000000

Hole Saws for Sheet Metal

Lower cutting depths than standard hole saws make these saws less likely to rip or tear while making smooth, burr-free cuts in sheets. Heat-treated high-speed steel teeth cut through aluminum, brass, bronze, and steel. Use these saws on a drill or drill press. An arbor (sold separately) is required.

Arbors with pilot drill guide your cut.

Arbors with spring-loaded pilot pins push out the slug as you cut. They require a drilled pilot hole.

1/4" Cutting Depth


	Arbor with Spring-Loaded Pilot Pin	Arbors with Pilot Drill

Hole Saws				Arbors with Pilot Drill			Replacement Pilot Drills		Arbors with Spring-Loaded Pilot Pins			Replacement Spring-Loaded Pilot Pins
Dia., mm	For Arbor Thread Size		Each	Shank Size		Each		Each	Shank Size		Each		Each
20	3/8"-24	4298A26	000000	3/8"	4093A72	000000	4093A84	00000	3/8"	4093A71	000000	4093A75	00000