3" Cutoff Wheels | McMaster-Carr

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37 Products

Straight Grinder Cutoff Wheels for Metal


	Side View

Use these wheels to cut through metal such as iron, stainless steel, and steel. They are reinforced with a layer of fiberglass mesh. Choose coarser grit for fast cuts; choose finer grit for smooth cuts.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Choose a Grit		Each
3" Diameter



		0.035"	1/4"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	4550A821	00000


		0.035"	3/8"	25,465	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	4550A83	0000
		1/16"	1/4"	19,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	60	4550A613	0000
		1/16"	1/4"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	46	4550A824	0000
		1/16"	3/8"	19,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	36 , 60	4550A036	0000
		3/32"	1/4"	19,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	36 , 60	4550A041	0000
		3/32"	3/8"	19,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	36 , 60	4550A042	0000
		1/8"	1/4"	19,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	36 , 60	4550A043	0000
		1/8"	3/8"	19,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	36 , 60	4550A047	0000

Long-Life Straight Grinder Cutoff Wheels for Metal


	Side View

Premium-grade abrasive materials and two layers of fiberglass mesh reinforcement give these wheels a longer life than standard cutoff wheels when cutting metal such as iron, stainless steel, and steel. Choose coarser grit for fast cuts; choose finer grit for smooth cuts.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Choose a Grit		Each
3" Diameter



		0.035"	1/4"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	60	45615A332	00000


		0.035"	3/8"	25,465	Type 1	Straight	Aluminum Oxide/Zirconia Alumina Blend	Fiberglass Mesh	Iron, Stainless Steel, Steel	46	45615A312	0000
		0.045"	1/4"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	45615A304	0000
		0.045"	3/8"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	45615A305	0000
		1/16"	1/4"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Iron, Stainless Steel, Steel	36 , 60	45615A379	0000
		1/16"	3/8"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	36	45615A24	0000
		3/32"	1/4"	25,465	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	36 , 60	45615A178	0000
		3/32"	3/8"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	36 , 60	45615A179	0000
		1/8"	3/8"	25,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	45615A306	0000

Fast-Cut Straight Grinder Cutoff Wheels for Metal


	Side View

Run these high-density aluminum oxide wheels at higher speeds than standard cutoff wheels to make quick cuts in aluminum, iron, stainless steel, and steel. Wheels are reinforced with a layer of fiberglass mesh.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Grit		Each
3" Diameter



		0.045"	1/4"	27,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	4144A11	00000


		0.045"	3/8"	27,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	4144A27	0000

Extra-Long-Life Straight Grinder Cutoff Wheels for Metal


	Side View

These high-density ceramic or ceramic oxide wheels have two layers of fiberglass mesh reinforcement and last up to twice as long as long-life cutoff wheels when cutting iron, stainless steel, and steel.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Grit		Each
3" Diameter



		0.045"	1/4"	22,250	Type 1	Straight	Ceramic	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	45615A571	00000


		0.045"	3/8"	22,250	Type 1	Straight	Ceramic	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	45615A572	0000
		1/16"	1/4"	26,250	Type 1	Straight	Ceramic Alumina	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	80	45615A261	0000
		1/16"	3/8"	26,250	Type 1	Straight	Ceramic Alumina	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	80	45615A262	0000

Straight Grinder Cutoff Wheels for Hard Metal


	Side View

The combination of ceramic alumina and zirconia alumina in these wheels lasts up to ten times longer than aluminum oxide when cutting hard metal such as Inconel nickel, Hastelloy nickel, and tool steel. Wheels are reinforced with a layer of fiberglass mesh. Choose coarser grit for fast cuts; choose finer grit for smooth cuts.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Grit		Each
3" Diameter



		0.035"	1/4"	25,465	Type 1	Straight	Ceramic Alumina/Zirconia Alumina	Fiberglass Mesh	Hastelloy Nickel, Inconel Nickel, Tool Steel	60	2499A31	00000


		0.035"	3/8"	25,465	Type 1	Straight	Ceramic Alumina/Zirconia Alumina	Fiberglass Mesh	Hastelloy Nickel, Inconel Nickel, Tool Steel	60	2499A32	0000
		1/16"	1/4"	25,465	Type 1	Straight	Ceramic Alumina/Zirconia Alumina	Fiberglass Mesh	Hastelloy Nickel, Inconel Nickel, Tool Steel	36	2499A35	0000
		1/16"	3/8"	25,465	Type 1	Straight	Ceramic Alumina/Zirconia Alumina	Fiberglass Mesh	Hastelloy Nickel, Inconel Nickel, Tool Steel	36	2499A36	0000
		1/8"	3/8"	25,465	Type 1	Straight	Ceramic Alumina/Zirconia Alumina	Fiberglass Mesh	Hastelloy Nickel, Inconel Nickel, Tool Steel	36	2499A38	0000

Contaminant-Free Straight Grinder Cutoff Wheels for Stainless Steel


	Side View

With less than 0.1% iron, chloride, and sulfur contaminants, these wheels prevent corrosion and discoloration on stainless steel. They’re made with an aluminum oxide abrasive and reinforced with two layers of fiberglass mesh.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Grit		Each
3" Diameter



		1/32"	1/4"	25,470	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Stainless Steel	60	4739N11	00000


		1/32"	3/8"	25,470	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Stainless Steel	46	4739N12	0000

Straight Grinder Cutoff Wheels for Aluminum, Brass, and Copper


	Side View

Use these clog-resistant zirconia alumina wheels to make quick cuts in soft metal such as aluminum, brass, and copper. Wheels are reinforced with a layer of fiberglass mesh.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Grit		Each
3" Diameter



		1/32"	3/8"	25,470	Type 1	Straight	Aluminum Oxide/Zirconia Alumina Blend	Fiberglass Mesh	Aluminum, Brass, Copper	60	4220A1	00000

Flush-Cut Straight Grinder Cutoff Wheels for Metal


	Side View

Also known as Type 27, raised-hub, and depressed-center cutoff wheels, these wheels outperform Type 1 wheels when making flush cuts in metal.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Grit		Each
3" Diameter



		1/32"	3/8"	25,470	Type 27	Raised Hub	Aluminum Oxide	Fiberglass Mesh	Stainless Steel, Steel	60	4762N11	00000

Circular Saw Blades for Composites and Graphite


	Round Arbor

A blend of tungsten carbide and diamond grits on the continuous edge of these blades cuts hard, nonmetallic materials including composite and graphite. Use dry or with water or coolant (not included).

					Material
	Arbor Hole Size	Arbor Hole Shape	Cut Wd.	Max. Rotation Speed, rpm	Abrasive	Body	Saw Cutting Type	Edge Style	For Use On		Each
3" Diameter



		1/4"	Round	0.12"	23,000	Carbide/Diamond Blend	Steel	Dry, Wet	Continuous	Composite, Graphite	40225A8	0000000


		3/8"	Round	0.12"	23,000	Carbide/Diamond Blend	Steel	Dry, Wet	Continuous	Composite, Graphite	40225A9	000000

Circular Saw Blades for Glass and Fiberglass

The carbide-grit edge on these blades cuts brittle and abrasive materials including glass and fiberglass. Blades with multiple arbor diameters come with a reducer bushing. Choose medium grit for less material loss and smoother cuts. Choose coarse grit for faster cuts. For blades with a round/diamond arbor, detach the center piece to expose the diamond shape.

Coarse Grit


Continuous Edge	Round Arbor

					Material
	Arbor Hole Size	Arbor Hole Shape	Cut Wd.	Max. Rotation Speed, rpm	Abrasive	Body	Saw Cutting Type	Edge Style	For Use On		Each
3" Diameter



		3/8"	Round	0.098"	15,200	Carbide	Steel	Dry	Continuous	Fiberglass, Glass	4021A31	000000

Straight Grinder Cutoff Wheels for Stainless Steel


	Side View

For quick cuts in stainless steel, run these high-density zirconia alumina wheels at a higher rpm than standard cutoff wheels. They’re reinforced with a layer of fiberglass mesh.

Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.

				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	For Use On	Grit		Each
3" Diameter



		0.045"	1/4"	27,000	Type 1	Straight	Aluminum Oxide/Zirconia Alumina Blend	Fiberglass Mesh	Stainless Steel	60	4144A21	00000