1 1/2" Cutoff Wheels | McMaster-Carr

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Arbor Hole Size

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Grinding Wheel Designation

Type 1

Grit

120

Rotation Speed

20,000 rpm to 29,999 rpm

30,000 rpm to 39,999 rpm

40,000 rpm or greater

Arbor Hole Shape

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Grinding Wheel Shape

Straight

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DFARS Specialty Metals

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20 Products

Dremel Quick-Change Rotary Tool Cutoff Wheels


	Rotary Tool Arbors

Swap accessories quickly and safely without tools. These wheels have a special arbor hole that work with a pull-twist-release locking mechanism (sold separately). They are also compatible with standard Dremel wheel arbors with a slotted-head-screw locking mechanism.

Boron Nitride Abrasive—Boron nitride abrasive wheels remain sharp longer, stay cool, and won’t shrink. They are good for cutting nails, rebar, metal studs, threaded rod, conduit, metal HVAC duct, metal door jambs, and galvanized struts. These wheels last 20 times longer than aluminum oxide cutting wheels.

Diamond Abrasive—Diamond abrasive wheels are the most durable and last the longest while producing smooth and precise cuts. They are ideal for cutting hard and abrasive materials such as marble, concrete, brick, porcelain, ceramics, hard epoxy, and soft or hardwood.

	Rotary Tool Cutoff Wheels										Rotary Tool Arbors with Pull-Twist-Release Locking Mechanism
				Grinding Wheel		Material
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive	Reinforcement	Pkg. Qty.		Pkg.		Each
For Aluminum, Stainless Steel, and Steel







				1 1/2" Diameter

				0.02"	1/8"	35,000	Type 1	Straight	Aluminum Oxide	Fiberglass	5	4344A68	000000	4344A47	000000


				0.045"	1/8"	30,000	Type 1	Straight	Aluminum Oxide	Fiberglass	5	4344A16	00000	4344A47	00000


				For Stainless Steel, Steel, and Copper







								1 1/2" Diameter

								0.041"	1/8"	35,000	Type 1	Straight	Boron Nitride	Fiberglass	1	4344A64	00000	4344A47	00000


								For Plastic







												1 1/2" Diameter

												0.045"	1/8"	35,000	Type 1	Straight	Aluminum Oxide	Fiberglass	5	4344A66	00000	4344A47	00000


												For Wood







																1 1/2" Diameter

																0.07"	1/8"	35,000	Type 1	Straight	Carbide	—	1	4344A65	00000	4344A47	00000


																For Ceramics, Concrete, Masonry, Stone, and Wood







																				1 1/2" Diameter

0.023"																				1/8"	25,000	Type 1	Straight	Diamond	—	1	4344A67	00000	4344A47	00000

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
1 1/2" Diameter



		0.035"	1/8"	40,745	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	4550A126	00000


		0.035"	1/4"	40,745	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	60	4550A127	0000
		1/16"	1/8"	45,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	36, 60	4550A365	0000
		1/16"	1/4"	45,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	Aluminum, Iron, Stainless Steel, Steel	36, 60	4550A366	0000

Miniature Dremel-Compatible Rotary Tool Cutoff Wheels for Stainless Steel


	Side View

An aluminum oxide ceramic abrasive cuts through stainless 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	Grit	Pkg. Qty.		Pkg.
For Stainless Steel







				1 1/2" Diameter

				3/64"	1/8"	45,000	Type 1	Straight	Ceramic Alumina	Fiberglass Mesh	80	2	1257A41	00000

Miniature Dremel-Compatible Rotary Tool Cutoff Wheels for Metal


	Side View

Use these wheels to cut through metal such as aluminum, 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	Grit	Pkg. Qty.		Pkg.
For Aluminum, Iron, Stainless Steel, and Steel







				1 1/2" Diameter

				0.02"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	120	1	1257A13	00000


				0.025"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	—	90	12	1257A87	00000
				0.04"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	—	90	12	1257A88	00000
				0.049"	1/16"	40,740	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	46	6	1257A85	00000

Multipurpose Miniature Dremel-Compatible Rotary Tool Cutoff Wheels


	Side View

Use these wheels for cutting soft metal, plastic, stone, and wood.

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	Grit	Pkg. Qty.		Pkg.
For Aluminum, Brass, Copper, Plastic, Stone, and Wood







				1 1/2" Diameter

				1/32"	1/8"	45,000	Type 1	Straight	Silicon Carbide	Fiberglass Mesh	80	2	1257A31	00000

Multipurpose Dremel-Compatible Rotary Tool Blades

Image of Product. Front orientation. Rotary Tool Blades. For Copper, For Wood, For Plastic, For Rotary Tools, For Aluminum, For Brass.

Cut plastic, wood, and soft metal such as aluminum, brass, and copper. Choose blades with more teeth for a smoother cut.

	Arbor Hole					Material
Dia.	Size	Shape	No. of Teeth	Cut Wd.	Max. Rotation Speed, rpm	Tooth	Body		Each
1 1/2"	1/8"	Round	44	0.015"	35,000	Steel	Steel	6448A23	000000
1 1/2"	1/8"	Round	100	0.015"	35,000	Steel	Steel	6448A15	00000

Dremel-Compatible Rotary Tool Blades for Composites and Fiberglass

A tungsten carbide grit edge cuts through abrasive materials such as composites and fiberglass.

	Arbor Hole				Material
Dia.	Size	Shape	Cut Wd.	Max. Rotation Speed, rpm	Abrasive	Body	Edge Style		Each
1 1/2"	1/4"	Round	0.12"	23,000	Carbide	Steel	Continuous	1257A56	000000