Type 1-Wheel Rotary Tool Grinding Wheels

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Type 1

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20,000 rpm to 29,999 rpm

30,000 rpm to 99,999 rpm

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35 Products

Miniature Dremel-Compatible Rotary Tool Cutoff Wheels for Ceramics


	Side View

Made of diamond abrasive, these wheels cut ceramics, tile, and other abrasive materials. Because they’re miniature, they work best to make small, precise cuts. Use them to make plunge cuts in the center of material or to make flush cuts. The higher the grit number, the finer the grit. Choose a coarser grit for fast cuts; choose a finer grit for smooth cuts.

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

				Grinding Wheel
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive Material	Grit	Includes	Pkg. Qty.		Pkg.
For Ceramics







				7/8" Diameter

				0.007"	1/16"	21,000	Type 1	Straight	Diamond	220	—	1	1257A92	000000


				0.007"	1/16"	25,000	Type 1	Straight	Diamond	220	—	1	1257A33	00000
				0.011"	1/16"	25,000	Type 1	Straight	Diamond	150	—	1	1257A34	00000
				0.024"	1/16"	20,000	Type 1	Straight	Diamond	90	1/8" Shank Dia. Arbor	1	7683N11	00000




						1 1/4" Diameter

						0.025"	1/16"	21,000	Type 1	Straight	Diamond	220	—	1	1257A91	00000

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

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







				7/8" Diameter

				1/64"	1/16"	21,000	Type 1	Straight	Silicon Carbide	Fiberglass Mesh	120	20	1257A14	000000




						1" Diameter

						1/32"	1/8"	61,115	Type 1	Straight	Silicon Carbide	Fiberglass Mesh	80	2	1257A29	0000




								1 1/2" Diameter

								1/32"	1/8"	45,000	Type 1	Straight	Silicon Carbide	Fiberglass Mesh	80	2	1257A31	0000




										1 3/4" Diameter

										1/32"	1/8"	42,000	Type 1	Straight	Silicon Carbide	Fiberglass Mesh	80	2	1257A32	0000

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







				7/8" Diameter

				0.009"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	—	240	25	1257A15	000000


				0.015"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	—	180	25	1257A16	00000




						15/16" Diameter

						0.009"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	120	1	1257A11	0000


						0.015"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	120	1	1257A12	0000
						0.025"	1/16"	30,000	Type 1	Straight	Aluminum Oxide	—	90	50	1257A74	00000
						0.04"	1/16"	30,000	Type 1	Straight	Aluminum Oxide	—	90	25	1257A75	00000




								1" Diameter

								0.027"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	—	120	100	1257A17	00000




										1 1/4" Diameter

										0.049"	1/16"	30,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	90	10	1257A76	00000


										0.062"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	—	90	12	1257A86	00000




												1 1/2" Diameter

												0.02"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	Fiberglass Mesh	120	1	1257A13	0000


												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




														1 5/8" Diameter

														0.04"	1/16"	21,000	Type 1	Straight	Aluminum Oxide	—	120	100	1257A23	00000

Dremel Quick-Change Rotary Tool Grinding Wheels


	Pull-Twist-Release-Lock Rotary Tool Arbors

	Rotary Tool Grinding Wheels									Pull-Twist-Release-Lock Rotary Tool Arbors
				Grinding Wheel
	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Designation	Shape	Abrasive Material	Pkg. Qty.		Pkg.		Each
1 1/2" Diameter







				For Steel, Stainless Steel, Aluminum, Brass, and Copper

				0.138"	1/8"	35,000	Type 1	Straight	Aluminum Oxide	2	4344A69	000000	4344A47	000000

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




						1 3/4" Diameter

						3/64"	1/8"	42,000	Type 1	Straight	Ceramic Alumina	Fiberglass Mesh	80	2	1257A42	0000




								2" Diameter

								3/64"	1/8"	30,000	Type 1	Straight	Ceramic Alumina	Fiberglass Mesh	80	2	1257A43	0000




										2 1/2" Diameter

										3/64"	1/4"	26,000	Type 1	Straight	Ceramic Alumina	Fiberglass Mesh	80	2	1257A44	0000