Grinder Nuts | McMaster-Carr

	For Disc Diameter For Disc Diameter

4 1/2"

	Manufacturer Manufacturer

DeWalt

Milwaukee

	For Wheel Diameter For Wheel Diameter

4 1/2"

	For Use With For Use With

Angle Grinders

Cup Brushes

Raised-Hub Grinding Wheels

	Switch Type Switch Type

Paddle

Trigger

Slide

	Arbor Hole Arbor Hole

Threaded

Unthreaded

	Maximum Speed Maximum Speed

	Current Current

	Flexibility Flexibility

Flexible

Semi-Rigid

Rigid

	Arbor Hole Thread Size Arbor Hole Thread Size

5/8"-11

M14

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Manufacturer Model Number Manufacturer Model Number

	Cord Length Cord Length

6 ft.

8 ft.

10 ft.

	Speed Control Type Speed Control Type

Fixed

Variable

	Overall Length Overall Length

	Weight Weight

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Specifications Met Specifications Met

CSA

OSHA

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81 Products

About Sanding Abrasives

Cool-Sanding Backup Pads for Arbor-Mount Sanding Discs

These pads are designed to channel air flow to the sanding disc for cooler operation, prolonging the life of the disc. Install the backup pad onto the tool’s arbor, then attach a sanding disc and secure with a disc nut.

Style A comes with a separate plate which has a hole pattern to allow air flow.

Style B have spiral ribs which form air-flow channels. Disc nuts are sold separately.

Style A

		Arbor Hole
For Disc Dia.	Max. Speed, rpm	Thread Size	Thread Pitch	Includes		Each
7"	10,000	M14	2 mm	Disc Nut, Plate	0000000	000000

Style B

				Flexible		Semi-Rigid		Rigid
For Disc Dia.	Max. Speed, rpm	Arbor Hole Size	Arbor Hole Thread Size		Each		Each		Each
4"	12,000	__	5/8"-11	0000000	000000	000000	000000	0000000	000000
4 1/2"	11,000	5/8"	__	0000000	00000	000000	00000	0000000	00000
5"	10,000	__	5/8"-11	0000000	00000	000000	00000	0000000	00000
7"	7,000	__	5/8"-11	0000000	00000	000000	00	000000	00
7"	8,500	__	5/8"-11	000000	00	000000	00000	0000000	00000
9"	6,500	__	5/8"-11	0000000	00000	000000	00000	0000000	00000

5/8"-11	0000000	Each	00000
5/8"-11	0000000	Each	0000

Electric Angle Grinders for Grinding Wheels and Sanding Discs

The threaded spindles on these grinders accept raised-hub grinding wheels. Grinders have a spindle lock for fast wheel changes and a slide handle.

Grinders that meet OSHA 29 CFR 1910.215 and OSHA 29 CFR 1926.303 are compliant with standards for abrasive wheels. Grinders that meet OSHA 29 CFR 1910.243 are compliant with standards for hand-held equipment.

Wheel guards are required when using grinding wheels and cups.

Backup pads are required when using sanding discs. Thread the backup pad onto the tool's arbor, then attach a sanding disc and secure with its disc nut.

Match replacement parts to the manufacturer, model number, and type of your grinder, all of which are listed on the tool's label.

Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.

DeWalt Grinders

For Wheel Dia.	Max. Speed, rpm	For Arbor Hole Size	Voltage	Current, A	Switch Type	Speed Control Type	O'all Lg.	Wt., lbs.	Specifications Met	Manufacturer Model No.		Each
4 1/2"	11,000	5/8"-11	120V AC	11	Paddle	Fixed	12"	4.625	UL Listed, CSA Certified	DWE402	0000000	0000000
4 1/2"	11,000	5/8"-11	120V AC	11	Slide	Fixed	12"	4.625	UL Listed, CSA Certified	DWE4214	0000000	000000
5"	11,000	5/8"-11	120V AC	12	Trigger	__	14"	7.5	UL Listed, CSA Certified	DW831	0000000	000000
5"	11,000	5/8"-11	120V AC	13	Paddle	Fixed	13"	5.5	UL Listed, CSA Certified	DWE43114	0000000	000000
6"	9,000	5/8"-11	120V AC	13	Paddle	Fixed	13"	6.25	UL Listed, CSA Certified	DWE43144	0000000	000000

Backup Pad for 4 1/2" Wheel Dia.	0000000	Each	000000
Backup Pad for 5" Wheel Dia.	0000000	Each	00000

Wheel Guards for DeWalt Grinders

For Wheel
Dia.	Type	Form	For Manufacturer Model No.		Each
4 1/2"	Type 1	__	DWE402, DWE4214	0000000	000000
4 1/2"	Type 27	__	DWE402, DWE4214	0000000	0000
4 1/2"	Type 27	Flap Disc	DWE402, DWE4214	0000000	00000
5"	Type 1	__	DW831	0000000	00000
5"	Type 1	__	DWE402, DWE43114	0000000	00000
5"	Type 27	__	DWE402	0000000	00000
5"	Type 27	__	DWE43114	0000000	00000
6"	Type 1	__	DWE43144	0000000	00000
6"	Type 27	__	DWE43144	0000000	0000

Replacement Parts for DeWalt Grinders

Brushes
For Manufacturer Model No.	For Type		Each
DW831	__	0000000	000000
DWE402, DWE4214, DWE43114, DWE43144	__	0000000	0000
Cords
DW831	Type 1, Type 2, Type 3, Type 4	00000000	00000
DW831	Type 5	00000000	00000
DWE402	__	00000000	00000
DWE4214	Type 1, Type 2	00000000	00000
DWE4214	Type 3, Type 4	00000000	00000
DWE43114, DWE43144	__	0000000	00000
Flange Nuts
DW831	Type 1	00000000	0000
DW831	Type 2	00000000	0000
DW831	Type 3, Type 4	0000000	0000
DW831, DWE402, DWE4214, DWE43114, DWE43144	Type 5	00000000	0000
Handles
DW831	Type 1, Type 2, Type 3, Type 4	00000000	00000
DW831	Type 5	00000000	0000
DWE402, DWE4214, DWE43114, DWE43144	__	00000000	0000

Milwaukee Grinders

						Speed Control
For Wheel Dia.	Max. Speed, rpm	For Arbor Hole Size	Voltage	Current, A	Switch Type	Type	Switch Type	Specifications Met	Manufacturer Model No.		Each
4 1/2"	11,000	5/8"-11	120V AC	7.5	Paddle	Fixed	__	OSHA Compliant 29 CFR 1910.215, OSHA Compliant 29 CFR 1910.243, OSHA Compliant 29 CFR 1926.303, UL Listed, C-UL Listed, CSA Certified	6140-30	00000000	0000000
4 1/2"	12,000	5/8"-11	120V AC	11	Paddle	Fixed	__	OSHA Compliant 29 CFR 1910.215, OSHA Compliant 29 CFR 1910.243, OSHA Compliant 29 CFR 1926.303, UL Listed, C-UL Listed, CSA Certified	6142-31	00000000	000000
5"	11,500	5/8"-11	120V AC	13	Paddle	Fixed	__	OSHA Compliant 29 CFR 1910.215, OSHA Compliant 29 CFR 1910.243, OSHA Compliant 29 CFR 1926.303, UL Listed, C-UL Listed, CSA Certified	6117-30	00000000	000000
7", 9"	6,000	5/8"-11	120V AC	13	Trigger	Variable	Dial	OSHA Compliant 29 CFR 1910.215, OSHA Compliant 29 CFR 1910.243, OSHA Compliant 29 CFR 1926.303, UL Listed, C-UL Listed, CSA Certified	6078	0000000	000000
7", 9"	6,000	5/8"-11	120V AC	15	Trigger	Fixed	__	OSHA Compliant 29 CFR 1910.215, OSHA Compliant 29 CFR 1910.243, OSHA Compliant 29 CFR 1926.303, UL Listed, C-UL Listed, CSA Certified	6088-30	00000000	000000

Backup Pad for 7" Wheel Dia.	Each	000000
Backup Pad for 9" Wheel Dia.	Each	00000
Backup Pad for 4 1/2" Wheel Dia.	Each	00000
Backup Pad for 5" Wheel Dia.	Each	00000

Wheel Guards for Milwaukee Grinders

For Wheel
Dia.	Type	For Cup Dia.	For Manufacturer Model No.		Each
4 1/2"	Type 1	__	6140-30	000000000	000000
4 1/2"	Type 1	__	6142-31	00000000	0000
4 1/2"	Type 27	__	6140-30	000000000	00000
4 1/2"	Type 27	__	6142-31	000000000	00000
5"	Type 1	__	6117-30	000000000	00000
5"	Type 27	__	6117-30	000000000	0000
7"	Type 27	__	6078	00000000	00000
7"	Type 27	__	6088-30	00000000	00000
9"	Type 27	__	6078	00000000	00000
__	__	4"	6078	00000000	00000
__	__	5"	6078	00000000	00000

Replacement Parts for Milwaukee Grinders

Brushes
For Manufacturer Model No.		Each
6088-30	000000000	00000
6117-30	000000000	0000
6140-30	00000000	0000
6142-31	000000000	0000
Cords
6078	0000000	00000
6088-30	000000000	00000
6117-30	000000000	00000
6140-30	000000000	0000
6142-31	000000000	0000
Flange Nuts
6117-30, 6140-30, 6142-31	00000000	0000
6088-30	00000000	0000
Flanges
6117-30, 6142-31	000000000	0000
6140-30	000000000	0000

Flange Adapter Sets

For Wheel Dia. Range	For Arbor Hole Size	For Wheel Thick. Range	Includes		Each
6" to 9"	5/8"-11, 7/8"	1/16" to 1/4"	Flange, Hex Key, Mounting Nut	00000000	000000