20mm Hole Saws | McMaster-Carr

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12 Products

Hole Saws

Saw

Constant Set Tooth Style

Arbor with
Pilot
Drill Bit

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.

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

Saws
		Material					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
Dia.	For Arbor Thread Size	Body	Tooth	Tooth Style		Each		Each		Each		Each		Each		Each
For Use On Aluminum, Brass, Bronze, Plastic, Stainless Steel, Steel, Wood
1 5/8" Cutting Dp.
20mm	1/2"-20	Steel	High-Speed Steel	Constant Set	0000000	00000	0000000	00000	00000000	000000	0000000	00000	0000000	000000	0000000	00000

Hole Saws for Sheet Metal

1/4"-1/2" Cut Depth Saw

Arbor with Pilot Drill

Arbor with Spring-Loaded Pilot Pin

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.

For technical drawings and 3-D models, click on a part number.

1/4" Cutting Dp.

Saws				Arbor with Pilot Drill			Replacement Pilot Drill		Arbor with Spring-Loaded Pilot Pin			Replacement Spring-Loaded Pilot Pin
Dia.	For Arbor Thread Size		Each	Shank Size		Each		Each	Shank Size		Each		Each
20mm	3/8"-24	0000000	000000	3/8"	0000000	000000	0000000	000000	3/8"	0000000	000000	0000000	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.

For technical drawings and 3-D models, click on a part number.

			Material
No. of Saws	Dia.	Cutting Dp.	Body	Tooth	Includes		Each
For Use On Aluminum, Brass, Bronze, Steel
7	8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm	1/4"	Heat-Treated High-Speed Steel	Heat-Treated 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	0000000	0000000