3" Diameter Disc Sanders

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37 Products

Swirl-Free Air-Powered Disc Sanders

For a more consistent finish than rotary or orbital disc sanders, these move sanding discs in small irregular circles to prevent swirl marks. Also known as random orbital sanders. They work with either adhesive-back discs or hook and loop discs.

Sanders

Medium Duty—Medium duty sanders work well for general purpose sanding. To adjust how much material they remove, turn the dial with your thumb as you sand to change the speed.

Heavy Duty—Heavy duty sanders can be used continuously to sand most surfaces. They run at a steady speed and balance power and weight, so you can achieve your finish faster than light and medium duty sanders. They'll maintain speed when sanding tough surfaces.

3/32" Diameter Orbit—Sanders with a _3/32" orbit diameter remove material the slowest but leave the finest finish on your work surface.

3/16" Diameter Orbit—Sanders with a _3/16" orbit diameter balance removal speed with finish quality and leave you with a moderately smooth finish on your work surface.

3/8" Diameter Orbit—Sanders with a _3/8" orbit diameter are good for aggressive sanding, such as shaping material. They remove material the quickest and leave the coarsest finish on your work surface.

	Sanders																Replacement Pads
					Spindle					Air Inlet
	For Disc Dia.	Power, hp	Max. No-Load Rotational Speed, rpm	No. of Speeds	Thread Size	Gender	Air Consumption, ft³/min	Overall Lg.	Wt., lb.	Pipe Size	Thread Type	Gender	For Air Hose ID	Includes		Each		Each
Medium Duty—For Adhesive-Back Disc Mounts







				3/32" Diameter Orbit

				3"	0.25	12,000	Variable	5/16"-24	Female	1.9	7"	1.5	1/4	NPT	Female	1/4"	Backup Pad	82355A103	0000000	82355A104	000000




						3/16" Diameter Orbit

						3"	0.25	12,000	Variable	5/16"-24	Female	1.9	6 1/2"	1.5	1/4	NPT	Female	1/4"	Backup Pad	82355A102	000000	82355A104	00000




								3/8" Diameter Orbit

								3"	0.25	12,000	Variable	5/16"-24	Female	1.9	6"	1.5	1/4	NPT	Female	1/4"	Backup Pad	82355A101	000000	82355A104	00000


								Heavy Duty—For Hook and Loop Disc Mounts







												3/32" Diameter Orbit

												3"	0.1	12,000	1	1/4"-20	Female	1.1	6"	1.25	1/4	NPT	Female	1/4"	Backup Pad	82355A106	000000	82355A107	00000




														3/16" Diameter Orbit

														3"	0.1	12,000	1	1/4"-20	Female	1.1	6"	1.25	1/4	NPT	Female	1/4"	Backup Pad	82355A105	000000	82355A107	00000

Heavy Duty Air-Powered Disc Sanders

For tough jobs, these sanders use roughly 1.5 times more air than standard air-powered disc sanders. Made with a steel housing, they’ll hold up to bumps and scuffs in environments as rugged as foundries. They’re often used to remove flash, which is the metal that seeps out of die cast molds. Their high air consumption makes the steel cold, but a rubber housing protects your hands and also reduces vibration. These sanders move in a fixed rotary motion, so they remove more material from your work surface than random orbital sanders. However, this means they can leave swirl marks on the surface. Use with Style B quick-change discs (not included).

	Sanders																Replacement Pads
					Spindle					Air Inlet
	For Disc Dia.	Power, hp	Max. No-Load Rotational Speed, rpm	No. of Speeds	Thread Size	Gender	Overall Lg.	Wt., lb.	Average Air Consumption @ Pressure	Pipe Size	Thread Type	Gender	For Air Hose ID	Includes		Each		Each
For Quick-Change-Fastener Disc Mounts



		3"	0.7	18,000	1	3/8"-24	Male	2 3/4"	3	5.7 ft³/min @ 90 psi	1/4	NPT	Female	3/8"	Backup Pad	9029N111	0000000	9029N112	000000

Air-Powered Disc Sanders

With a fixed rotary movement, these sanders remove more material from workpieces than random orbital sanders. However, they may leave swirl marks on the surface as a result.

Sanders


For 3", 4 1/2", and 5" Disc Dia.	Quick-Change Fastener Style B

For Adhesive-Back Disc Mounts—Sanders for adhesive-back discs come with a backup pad for use with adhesive-back discs.

	Sanders																Replacement Pads
					Spindle					Air Inlet
	For Disc Dia.	Power, hp	Max. No-Load Rotational Speed, rpm	No. of Speeds	Thread Size	Gender	Overall Lg.	Wt., lb.	Average Air Consumption @ Pressure	Pipe Size	Thread Type	Gender	For Air Hose ID	Includes		Each		Each
For Adhesive-Back Disc Mounts



		3", 4 1/2", 5"	0.3	20,000	Variable	7/16"-20	Male	8 1/4"	2 1/2	4 ft³/min @ 90 psi	3/8	NPT	Female	3/8"	Three Backup Pads	4639A31	000000	4639A32	00000

Dust-Collecting Sanders


	Quick-Change Fastener Style B

Dust-collecting sanders have a built-in vacuum that connects to a self-contained dust-collection kit (sold separately). The vacuum prevents clogs to extend the life of your sanding discs and keep your workspace dust-free. The vacuum shroud is clear and has a view port so you can see the edge of your sanding disc as you work.

For Quick-Change-Fastener Disc Mounts—Sanders for quick-change-fastener discs are used with Style B quick-change discs and require a backup pad (not included).

	Sanders																Pads		Dust Collection Kits
					Spindle					Air Inlet
	For Disc Dia.	Power, hp	Max. No-Load Rotational Speed, rpm	No. of Speeds	Thread Size	Gender	Overall Lg.	Wt., lb.	Average Air Consumption @ Pressure	Pipe Size	Thread Type	Gender	For Air Hose ID	Features		Each		Each		Each
For Quick-Change-Fastener Disc Mounts



		3"	2/5	3,200	1	1/4"-20	Male	3 3/4"	1 3/4	2.9 ft³/min @ 90 psi	1/4	NPT	Female	1/4"	Vacuum Shroud with View Port	8248N121	0000000	8248N122	000000	82355A85	000000

Cordless Swirl-Free Disc Sanders

Create a consistent finish on quick sanding jobs where you don’t have access to air or electric power. Also known as random orbital sanders, they move in small irregular circles to leave a more consistent finish than rotary disc sanders. The variable-speed motor lets you set the speed for any task, from heavy material removal to delicate surface sanding. To conform to curves and crevices for a consistent finish, they include a cushioning pad. Use these sanders with hook and loop sanding discs. The battery and charger are also sold separately.

Milwaukee Sanders

Sander for 3" Diameter Disc

Model Number 2535-20—2535-20 sanders have an LED light illuminates dim workspaces and reduces shadows, so you can see your work.

Brushless Motor—These sanders have a brushless motor to reduce friction and optimize battery life. The motor runs cool and has few moving parts that require maintenance.

Dust Collection Bag—To remove dust from the air and extend the life of the sanding sheet, these sanders have a dust collection bag.

Dust Collection Hose Adapter—These sanders have a dust collection hose adapter that connects to a vacuum for an alternative to the collection bag or canister.

	Sanders																Replacement Pads
			No-Load Orbital Speed, opm
	Mfr. Model No.	For Disc Dia.	Min.	Max.	No. of Speeds	Overall Lg.	Wt., lb.	Voltage, V DC	Motor Type	Batteries Included	Battery Charger Included	Certification	Includes	Features		Each		Each
For Hook and Loop Disc Mounts



		2535-20	3"	4,000	10,000	Variable	8 3/8"	2	12	Brushless	No	No	C-UL Listed, UL Listed	Backup Pad, Dust Collection Bag, Dust Collection Hose Adapter, Nine Sanding Sheets	LED Light	9132N22	0000000	9132N32	000000

Accessories for Sanders

Chargers

						Electrical
	Mfr.	For Battery Voltage, V DC	For No. of Batteries	Charging Time, min.	Input Voltage, V AC	Connection	No. of Blades	Cord Lg., ft.		Each
For Lithium Ion (Li-Ion) Batteries



		Milwaukee	12/18	2	60	120	Straight Blade	2	6	29735A128	000000

Batteries

For many batteries, recycling or other proper disposal is required by law. Do not dispose of batteries in the trash. For recycling drop-off locations visit www.batterynetwork.org/locator or call 1-877-2-RECYCLE.

	Voltage, V DC	Battery Cap., A·h	Pkg. Qty.		Pkg.
Lithium Ion (Li-Ion) Battery



	Milwaukee	12	3	1	29735A616	000000

Cordless Disc Sanders


Sander	Sander with Batteries and Charger

For quick jobs where you don’t have access to a power source, these sanders are battery-powered. They’re more aggressive than orbital disc sanders—they use rotary motion to remove material faster. The rotary motion may leave swirl marks on your work surface. All require quick-change sanding discs or hook and loop sanding discs. You can also use them wit h quick-change polishing pads to polish your surface.

These sanders have a brushless motor that reduces friction to optimize battery life. They’re durable; they run cool and have few moving parts that require maintenance. An LED light illuminates your work surface and reduces shadows for easy viewing. Adjust the side handle to keep your grip steady in multiple positions.

Use them with an Ingersoll Rand 20V DC battery and charger you already have or choose the sander that has batteries and a charger included.

Batteries—For many batteries, recycling or other proper disposal is required by law. Do not dispose of batteries in the trash. For recycling drop-off locations visit www.batterynetwork.org/locator or call 1-877-2-RECYCLE.

	Sanders													Batteries		Chargers
				Spindle
	For Disc Dia.	Max. No-Load Rotational Speed, rpm	No. of Speeds	Thread Size	Gender	Overall Lg.	Wt., lb.	Motor Type	Batteries Included	Battery Charger Included	Includes		Each		Each		Each
Ingersoll Rand G4621—20V DC



		2", 3"	8,300	Variable	5/16"-24	Female	5"	1 3/4	Brushless	No	No	One Hook and Loop Backup Pad, Three Polishing Pads, Two Quick-Change Fastener Backup Pads	9817N11	0000000	5483A53	0000000	5483A54	0000000


		Ingersoll Rand G4621-K22—20V DC



				2", 3"	8,300	Variable	5/16"-24	Female	5"	2 1/2	Brushless	Yes	Yes	One Hook and Loop Backup Pad, Three Polishing Pads, Two Quick-Change Fastener Backup Pads	9817N12	000000	5483A53	000000	5483A54	000000

Backup Pads with Shank for Quick-Change Sanding Discs


TS	TR	TP

Secure the shank on one of these pads into the collet or chuck of your tool and attach the quick-change connector on the back of compatible sanding discs to the pad.

Soft—Pads rated soft conform to contoured surfaces and are good for polishing and finishing.

Medium—Pads with medium hardness provide enough support for heavy material removal but are flexible enough for contouring and shaping.

Hard—Pads rated hard hold their shape as you apply pressure and are the best option for aggressive material removal.

						Each
For Disc Dia.	Mfr. Equiv. Model	Max. Rotation Speed, rpm	Shank Dia.	Hardness Rating		1-9	10-49	50-Up
3"	3M TSM, Norton Speed-Lok TS, Standard Abrasive SocAtt	20,000	1/4"	Soft	6879N14	000000	000000	000000
3"	3M TSM, Norton Speed-Lok TS, Standard Abrasive SocAtt	20,000	1/4"	Medium	4701A73	00000	00000	00000
3"	3M TSM, Norton Speed-Lok TS, Standard Abrasive SocAtt	20,000	1/4"	Hard	6879N13	00000	00000	00000

Medium—Pads with medium hardness provide enough support for heavy material removal but are flexible enough for contouring and shaping.

Hard—Pads rated hard hold their shape as you apply pressure and are the best option for aggressive material removal.

						Each
For Disc Dia.	Mfr. Equiv. Model	Max. Rotation Speed, rpm	Shank Dia.	Hardness Rating		1-9	10-49	50-Up
3"	3M Roloc, Norton Speed-Lok TR	20,000	1/4"	Medium	46325A93	000000	000000	000000
3"	3M Roloc, Norton Speed-Lok TR	20,000	1/4"	Hard	6879N17	00000	00000	00000

Medium—Pads with medium hardness provide enough support for heavy material removal but are flexible enough for contouring and shaping.

						Each
For Disc Dia.	Mfr. Equiv. Model	Max. Rotation Speed, rpm	Shank Dia.	Hardness Rating		1-9	10-49	50-Up
3"	Merit Power-Lock Type I, Norton TY Power-Lock Type I	20,000	1/4"	Medium	47045A53	000000	000000	000000

Backup Pads with Shank for Flexible-Edge Quick-Change Sanding Discs


TS	TP

The flexible edge of the sanding disc overhangs these backup pads. Secure the shank into the collet or chuck of your tool, then attach the quick-change connector on the sanding disc to the corresponding connector on the backup pad.

						Each
For Disc Dia.	Mfr. Equiv. Model	Max. Rotation Speed, rpm	Shank Dia.	For Use With		1-9	10-49	50-Up



	3", 4"	3M TSM, Norton Speed-Lok TS, Standard Abrasive SocAtt	30,000	1/4"	Grinders for Bits and Burs	4701A95	000000	000000	000000

						Each
For Disc Dia.	Mfr. Equiv. Model	Max. Rotation Speed, rpm	Shank Dia.	For Use With		1-9	10-49	50-Up



	3", 4"	Merit Power-Lock Type I, Norton TY Power-Lock Type I	30,000	1/4"	Grinders for Bits and Burs	47045A86	000000	000000	000000

Backup Pads with Shank for Adhesive-Back Sanding Discs


Front	Back

Secure the shank on one of these backup pads into the collet or chuck of your tool and then press the disc onto the backup pad.

					Each
For Disc Dia.	Max. Rotation Speed, rpm	Shank Dia.	For Use With		1-9	10-49	50-Up



	3"	6,000	1/4"	Grinders for Bits and Burs, Handheld Power Drills	4702A71	000000	000000	000000

Backup Pads with Shank for Nylon Mesh Cushioned Hook and Loop Sanding Discs


Front	Back

A nylon mesh cushion layer between the pad and disc conforms to contoured surfaces for smooth blending and finishing. These backup pads have a shank that fits into the collet or chuck of a die grinder or rotary tool. The hook-and-loop face lets you quickly attach, remove, and reuse sanding discs.

					Each
For Disc Dia.	Max. Rotation Speed, rpm	Shank Dia.	For Use With		1-9	10-49	50-Up



	3"	20,000	1/4"	Grinders for Bits and Burs	46595A33	000000	00000	00000

Disc Sanding Blocks for Wet Sanding


	Replacement Sponge

Keep the surface of your workpiece damp during sanding. These blocks have a sponge in the center that soaks up water or lubricant, then slowly releases it as you sand. This makes the surface of your sanding disc (sold separately) slippery, which helps prevent scratches. It also washes away dust and debris, removing clogs and extending the life of the abrasive. Made of firm foam, these blocks distribute pressure evenly across the surface of the sanding disc. They’re often used for surface preparation or finishing delicate materials.

	Sanding Blocks						Replacement Sponges
	For Disc Dia.	Dia.	Material	Features		Each	Pkg. Qty.		Pkg.
For Adhesive-Back Mount



		3"	3"	Foam	Sponge	6566N21	000000	5	6566N5	000000


		For Hook and Loop Mount



				3"	3"	Foam	Sponge	6566N11	00000	5	6566N5	00000

Sanding Discs

Mount Type	Dia.	Abrasive Material	Abrasive Grain Size, μm	Grit	Pkg. Qty.		Pkg.
Adhesive Back	3"	Aluminum Oxide	30	360	25	6566N201	000000
Hook and Loop	3"	Aluminum Oxide	30	360	25	6566N101	00000