Duct Brushes | McMaster-Carr

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Bristle Flexibility

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For Use With

Electric Tube Cleaners

Grinders for Bits and Burs

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Thread Gender

Gender

Bristle Diameter

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

Yes

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

REACH

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Number of Bristle Spirals

Number of Stem Wires

Rotation Speed

1,200 rpm

1,800 rpm

Maximum Rotation Speed

Component

102 Products

About Brushes

Choose the right bristle material and diameter based on your application, workpiece surface material, and desired finish.

Threaded-Shank Low-Scratch Tube Brushes


Nylon Bristles, 8" Brush Dia. and Larger	Tampico Bristles

Attach the shank to a handle or power tool. Use these brushes to clean delicate surfaces inside tubes, pipes, and holes. The bristles won't leave behind debris that could cause rust on your workpiece.

Nylon Bristles—Nylon bristles are recommended for use around acids and alkalies.

Tampico Bristles—Tampico and cotton bristles are good for sweeping away dust or applying lubricants and polishing compounds.

	Brush			Bristle			Stem						Each
	Dia.	Lg.	Shape	Dia.	Flexibility	No. of Spirals	No. of Wires	Wire Material	Overall Lg.	Max. Rotation Speed, rpm	For Use With		1-11	12-Up
Nylon Bristles—For Use On Steel, Stainless Steel, Titanium, Brass, Bronze, Copper, Plastic







				1/4 NPSM Male Threaded Shank

				8"	6"	Round	0.030"	Flexible	1	4	Galvanized Steel	9 1/8"	1,200	Drills, Grinders for Bits and Burs	73205T32	000000	000000


				8"	6"	Square	0.030"	Flexible	1	4	Galvanized Steel	9 1/8"	1,200	Drills, Grinders for Bits and Burs	73205T36	00000	00000
				12"	6"	Round	0.030"	Flexible	1	4	Galvanized Steel	9 1/8"	1,200	Drills, Grinders for Bits and Burs	73205T33	00000	00000
				18"	6"	Round	0.030"	Flexible	1	4	Galvanized Steel	9 1/8"	1,200	Drills, Grinders for Bits and Burs	73205T34	00000	00000
				18"	6"	Square	0.030"	Flexible	1	4	Galvanized Steel	9 1/8"	1,200	Drills, Grinders for Bits and Burs	73205T38	00000	00000
				24"	6"	Round	0.060"	Flexible	1	4	Galvanized Steel	9 1/8"	1,200	Drills, Grinders for Bits and Burs	73205T35	00000	00000
				24"	6"	Square	0.060"	Flexible	1	4	Galvanized Steel	9 1/8"	1,200	Drills, Grinders for Bits and Burs	73205T39	00000	00000


				Tampico Bristles—For Use On Steel, Stainless Steel, Titanium, Aluminum, Brass, Bronze, Copper, Plastic







								1/4 NPT Male Threaded Shank

								1 1/4"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T51	00000	0000


								1 1/2"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T52	00000	0000
								1 3/4"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T53	00000	0000
								2"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T54	00000	0000
								2 1/4"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T55	00000	00000
								2 1/2"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T33	00000	00000
								2 3/4"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T56	00000	00000
								3"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T34	00000	00000
								3 1/2"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T57	00000	00000
								4"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T35	00000	00000
								5"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T36	00000	00000


								6"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T37	00000	00000
								7"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T38	00000	00000
								8"	4 1/2"	Round	—	Flexible	1	2	Galvanized Steel	8"	—	—	6413T39	00000	00000

Threaded-Shank Tube Brushes

Steel Bristles

Attach the shank to a handle or power tool. Use to remove light-to-medium rust and stains and small burs from tubes, pipes, and holes.

	Brush			Bristle			Stem							Each
	Dia.	Lg.	Shape	Dia.	Flexibility	No. of Spirals	No. of Wires	Wire Material	Overall Lg.	Max. Rotation Speed, rpm	For Use With	Features		1-11	12-Up
Steel Bristles—For Use On Steel, Plastic







				1/4 NPSM Male Threaded Shank

				4"	4 1/2"	Round	0.018"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	1/4" Dia. Loop Tip	6355T12	000000	000000


				4 1/2"	4 1/2"	Round	0.018"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	1/4" Dia. Loop Tip	6355T14	00000	00000
				5"	4 1/2"	Round	0.018"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T16	00000	00000
				5 1/2"	4 1/2"	Round	0.018"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T18	00000	00000
				6"	4 1/2"	Round	0.018"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T21	00000	00000
				6"	6"	Square	0.028"	Rigid	1	4	Galvanized Steel	8 5/8"	—	—	5/8" Dia. Loop Tip	7374T21	00000	00000
				6 1/2"	4 1/2"	Round	0.018"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T23	00000	00000
				7"	4 1/2"	Round	0.028"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T25	00000	00000
				7"	6"	Square	0.028"	Rigid	1	4	Galvanized Steel	8 5/8"	—	—	5/8" Dia. Loop Tip	7374T22	00000	00000
				8"	4 1/2"	Round	0.028"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T29	00000	00000
				8"	6"	Square	0.028"	Rigid	1	4	Galvanized Steel	8 5/8"	—	—	5/8" Dia. Loop Tip	7374T23	00000	00000


				8 1/2"	4 1/2"	Round	0.028"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T32	00000	00000
				9"	4 1/2"	Round	0.028"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T34	00000	00000
				10"	4 1/2"	Round	0.028"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T38	00000	00000
				10"	6"	Square	0.028"	Rigid	1	4	Galvanized Steel	8 5/8"	—	—	5/8" Dia. Loop Tip	7374T24	00000	00000
				11"	4 1/2"	Round	0.028"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T41	00000	00000
				12"	4 1/2"	Round	0.028"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T43	00000	00000
				13"	4 1/2"	Round	0.028"	Rigid	2	4	Galvanized Steel	7 3/4"	1,200	Drills, Grinders for Bits and Burs	5/8" Dia. Loop Tip	6355T44	00000	00000

Electric Tube Cleaners

Force out tough tube blockages with these powered cleaners. Pair the tube cleaner with a flexible shaft and then attach a brush or scraper to the shaft (each component sold separately). Water flows past the shaft to flush out loosened deposits. To power the cleaner, connect a three-prong (NEMA 5-15) extension cord.

Tube Cleaners

				Water Inlet				Electrical Connection
No. of Speeds	Voltage, V AC	Power, hp	Max. Rotation Speed, rpm	Hose Size	Thread Type	Gender	Control Type	Gender	End Type	NEMA Type	Features		Each



	Variable	120	1/2	1,800	3/4	GHT	Female	On/Off Foot Switch	Male	Receptacle	5-15	Reversible Motor	3627K13	000000000

Brushes

Brushes remove soft deposits and light scale. The bristles won’t leave behind debris that could cause rust on your workpiece. Match the brush diameter to your tube ID.

	Thread
Brush Dia.	Size	Type	Gender	Overall Lg.		Each







			Stainless Steel Bristles—For Stainless Steel, Aluminum, Brass, Bronze, Copper, Plastic

			1/4"	8-32	UNC	Female	3 3/4"	3627K211	00000


			5/16"	8-32	UNC	Female	3 3/4"	3627K212	0000
			3/8"	12-24	UNC	Female	4 5/8"	3627K213	0000
			7/16"	1/4"-28	UNF	Male	4 5/8"	3627K214	0000
			1/2"	1/4"-28	UNF	Male	4 5/8"	3627K215	0000
			9/16"	1/4"-28	UNF	Male	4 5/8"	3627K216	0000
			5/8"	1/4"-28	UNF	Male	4 5/8"	3627K217	0000
			11/16"	1/4"-28	UNF	Male	4 5/8"	3627K218	0000
			3/4"	1/4"-28	UNF	Male	4 5/8"	3627K219	0000
			13/16"	1/4"-28	UNF	Male	4 5/8"	3627K221	0000
			7/8"	1/4"-28	UNF	Male	4 5/8"	3627K222	0000


			15/16"	1/4"-28	UNF	Male	4 5/8"	3627K223	0000
			1"	1/4"-28	UNF	Male	4 5/8"	3627K224	0000

Low-Scratch Brushes

Brushes remove soft deposits and light scale. The bristles won’t leave behind debris that could cause rust on your workpiece. Match the brush diameter to your tube ID.

	Thread
Brush Dia.	Size	Type	Gender	Overall Lg.	Color		Each







			Brass Bristles—For Stainless Steel, Aluminum, Brass, Bronze, Copper, Plastic

			1/4"	8-32	UNC	Female	3 3/4"	—	3627K711	00000


			5/16"	8-32	UNC	Female	3 3/4"	—	3627K712	0000
			3/8"	12-24	UNC	Female	4 5/8"	—	3627K713	0000
			7/16"	1/4"-28	UNF	Male	4 5/8"	—	3627K714	0000
			1/2"	1/4"-28	UNF	Male	4 5/8"	—	3627K715	0000
			9/16"	1/4"-28	UNF	Male	4 5/8"	—	3627K716	0000
			5/8"	1/4"-28	UNF	Male	4 5/8"	—	3627K717	0000
			11/16"	1/4"-28	UNF	Male	4 5/8"	—	3627K718	0000
			3/4"	1/4"-28	UNF	Male	4 5/8"	—	3627K719	0000
			13/16"	1/4"-28	UNF	Male	4 5/8"	—	3627K721	0000
			7/8"	1/4"-28	UNF	Male	4 5/8"	—	3627K722	0000


			15/16"	1/4"-28	UNF	Male	4 5/8"	—	3627K723	0000
			1"	1/4"-28	UNF	Male	4 5/8"	—	3627K724	0000




					Nylon Bristles—For Steel, Stainless Steel, Titanium, Brass, Bronze, Copper, Plastic

					1/4"	8-32	UNC	Female	4 3/4"	Blue	3627K111	0000


					5/16"	8-32	UNC	Female	4 3/4"	Blue	3627K112	0000
					3/8"	12-24	UNC	Female	6 1/4"	Blue	3627K113	0000
					7/16"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K114	0000
					1/2"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K115	0000
					9/16"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K116	0000
					5/8"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K117	0000
					11/16"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K118	0000
					3/4"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K119	0000
					13/16"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K121	0000
					7/8"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K122	0000


					15/16"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K123	0000
					1"	1/4"-28	UNF	Male	6 1/4"	Blue	3627K124	0000

Scrapers

Scrapers remove light-to-medium deposits.

		Thread
For Tube ID	Scraper Lg.	Size	Type	Gender	Overall Lg.		Each







			For Steel, Stainless Steel, Aluminum, Brass, Bronze, Copper

			1/2" to 9/16"	3 1/8"	1/4"-28	UNF	Male	4 1/2"	3627K44	000000


			5/8" to 1"	3 1/2"	1/4"-28	UNF	Male	4 7/8"	3627K45	00000

Flexible Shafts

Flexible shaft with adapters connects to brushes with 8-32 and 12-24 female threads. Not for use with scrapers.

	Thread				12 ft. Overall Length		25 ft. Overall Length
For Tube ID	Size	Type	Gender	Includes		Each		Each
1/4" to 3/8"	8-32	UNC	Female	8-32 Thread Adapter, 12-24 Thread Adapter	3627K57	0000000	3627K37	0000000
7/16" to 1/2"	1/4"-28	UNF	Female	—	3627K53	000000	3627K33	000000
9/16" to 1"	1/4"-28	UNF	Female	—	3627K52	000000	3627K35	000000

Low-Scratch Tube Scrapers

Break down tube buildup without scratching. These sharp, rigid scrapers are for soft and hard deposits.

	Brushes						60" Lg. T-Handles
	Brush
	Dia.	Lg.	Bristle Flexibility	Overall Lg.		Each		Each
Steel Bristles—For Use On Steel, Plastic







				1/4 NPSM Male Coiled Flat Wire Scrapers

				3/4"	5 1/2"	Rigid	8 1/4"	7085T307	000000	———	0


				7/8"	5 1/2"	Rigid	8 1/4"	7085T308	00000	———	0
				1"	5 1/2"	Rigid	8 1/4"	7085T309	00000	———	0
				1 1/8"	5 1/2"	Rigid	8 1/4"	7085T401	00000	———	0
				1 1/4"	5 1/2"	Rigid	8 1/4"	7085T402	00000	———	0
				1 3/8"	5 1/2"	Rigid	8 1/4"	7085T403	00000	———	0
				1 3/4"	5 1/2"	Rigid	8 1/4"	7085T406	00000	7215T701	000000

Tube Scrapers

Break down hard, heavy deposits and tube buildup with these sharp, rigid scrapers.

	Brushes						60" Lg. T-Handles
	Brush
	Dia.	Lg.	Bristle Flexibility	Overall Lg.		Each		Each
Steel Bristles—For Use On Steel, Plastic







				1/4 NPSM Male Flat Wire Scrapers

				3/4"	4 3/4"	Rigid	7 7/8"	7085T101	000000	7215T701	000000


				7/8"	4 3/4"	Rigid	7 7/8"	7085T102	00000	7215T701	00000
				1"	4 3/4"	Rigid	7 7/8"	7085T103	00000	7215T701	00000
				1 1/8"	4 3/4"	Rigid	7 7/8"	7085T104	00000	7215T701	00000
				1 1/4"	4 3/4"	Rigid	7 7/8"	7085T105	00000	7215T701	00000
				1 3/8"	4 3/4"	Rigid	7 7/8"	7085T106	00000	7215T701	00000
				1 3/4"	4 3/4"	Rigid	7 7/8"	7085T109	00000	7215T701	00000