Grinder Guards | McMaster-Carr

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90 Products

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 side handle.

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

Image of Product. Front orientation. Angle Grinders. Electric Angle Grinders for Grinding Wheels and Sanding Discs.

For Wheel Dia.	Max. Rotation Speed, rpm	For Arbor Hole Thread Size	Voltage, V AC	Current, amp	Switch Type	Speed Control Type	Overall Lg.	Wt., lb.	Certification	Mfr. Model No.	Each
4 1/2"	11,000	5/8"-11	120	11	Paddle	Fixed	12"	4.625	UL Listed, CSA Certified	DWE402	0000000
4 1/2"	11,000	5/8"-11	120	11	Slide	Fixed	12"	4.625	UL Listed, CSA Certified	DWE4214	000000
5"	11,000	5/8"-11	120	12	Trigger	—	14"	7.5	UL Listed, CSA Certified	DW831	000000
7"	8,500	5/8"-11	120	15	Trigger	Fixed	19 1/4"	12.125	UL Listed, CSA Certified	DWE4517	000000
9"	6,500	5/8"-11	120	15	Trigger	Fixed	19 1/4"	12.125	UL Listed, CSA Certified	DWE4519	000000

Accessories and Replacements for Angle Grinders

Backup Pads

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.

For Disc Dia.	Max. Rotation Speed, rpm	Arbor Hole Thread Size	Includes	Each
4 1/2"	18,000	5/8"-11	Disc Nut	000000
5"	18,000	5/8"-11	Disc Nut	00000
7"	8,600	5/8"-11	Disc Nut	00000
9", 9 1/8"	7,000	5/8"-11	Disc Nut	00000

Angle Grinder Wheel Guards

Wheel guards are required when using grinding wheels and cups.

	For Grinding Wheel
	Dia.	Designation	Form	For Mfr. Model No.		Each
For DeWalt Grinders



		4"	Type 11	—	DWE402, DWE4214	00000000	000000


		4 1/2"	Type 1	—	DWE402, DWE4214	0000000	00000
		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	0000
		6"	Type 11	—	DWE4517, DWE4519	00000000	00000
		7"	Type 27	—	DWE4517	0000000	00000
		9"	Type 27	—	DWE4519	0000000	00000

For Wheel Dia.	For Arbor Hole Thread Size	For Wheel Thk.	Includes	Sold As		Each
6" to 9"	5/8"-11	1/16" to 1/4"	Flange, Hex Key, Mounting Nut	Set	00000000	000000

	For Mfr. Model No.
For DeWalt Grinders


DW831	0000000	000000
DWE402, DWE4214, DWE43114, DWE43144	0000000	0000
DWE4517, DWE4519	0000000	00000

Power Cords

	For Grinding Wheel Designation		Each
For DeWalt Grinders



	DW831	Type 5	00000000	000000


	DWE402	—	00000000	00000
	DWE4214	Type 1, Type 2	00000000	00000
	DWE4214	Type 3, Type 4	00000000	00000
	DWE4517, DWE4519	—	00000000	00000

Replacement Flange Nuts

	For Grinding Wheel Designation		Each
For DeWalt Grinders



	DW831	Type 1	00000000	00000


	DW831	Type 2	00000000	0000
	DW831	Type 3, Type 4	0000000	0000
	DW831, DWE402, DWE4214, DWE43114, DWE43144	Type 5	00000000	0000
	DWE4517, DWE4519	—	00000000	0000

Replacement Lever Handles

	For Grinding Wheel Designation		Each
For DeWalt Grinders



	DW831	Type 1, Type 2, Type 3, Type 4, Type 5	00000000	00000


	DWE402, DWE4214, DWE43114, DWE43144	—	00000000	0000
	DWE4517, DWE4519	—	00000000	0000

Makita

Cannot Be Sold To—Angle Grinders cannot be sold to the listed areas due to product regulations.

						Speed Control
For Wheel Dia.	Max. Rotation Speed, rpm	For Arbor Hole Thread Size	Voltage	Current, amp	Switch Type	Type	Switch Type	Overall Lg.	Wt., lb.	Certification	Mfr. Model No.	Cannot Be Sold To		Each
4"	11,000	M10 × 1.25 mm	120V AC	6	Slide	Fixed	—	10 1/2"	3.125	UL Listed	GA4030K	Outside United States	0000000	000000
4 1/2"	10,500	5/8"-11	120V AC	12	Slide	Variable	Dial	11 3/4"	5.25	UL Listed	9564CV	Outside United States	0000000	000000
4 1/2"	11,000	5/8"-11	120V AC, 120V DC	7.5	Paddle	Fixed	—	10 5/8"	3.5	UL Listed	9557PB	Outside United States	0000000	00000
5"	11,000	5/8"-11	120V AC	7.5	Paddle	Fixed	—	10 3/4"	4.6	UL Listed	9558HP	Outside United States	0000000	000000

Accessories for Angle Grinders

Backup Pads

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.

For Disc Dia.	Max. Rotation Speed, rpm	Arbor Hole Thread Size	Includes	Each
4"	11,500	M10	Disc Nut	000000
4 1/2"	11,500	5/8"-11	Disc Nut	00000
5"	11,500	5/8"-11	Disc Nut	00000

Angle Grinder Wheel Guards

Wheel guards are required when using grinding wheels and cups.

Cannot Be Sold To—Angle Grinder Wheel Guards cannot be sold to the listed areas due to product regulations.

	For Grinding Wheel
	Dia.	Designation	For Mfr. Model No.	Cannot Be Sold To		Each
For Makita Grinders



		4"	Type 27	GA4030	Outside United States	00000000	000000


		4 1/2"	Type 1	9564CV	Outside United States	00000000	00000
		4 1/2"	Type 27	9557NB, 9557PB	Outside United States	00000000	00000
		5"	Type 27	XAG04T, XAG04Z, XAG09Z, XAG11T, XAG11Z, XAG16Z, XAG17ZU, XAG20Z, XAG21ZU	Outside United States	00000000	00000

Milwaukee

Milwaukee grinders have a spindle lock for fast wheel changes.

OSHA Compliant 29 CFR 1910.215 and OSHA Compliant 29 CFR 1926.303—Grinders that meet OSHA 29 CFR 1910.215 and OSHA 29 CFR 1926.303 are compliant with standards for abrasive wheels.

OSHA Compliant 29 CFR 1910.243—Grinders that meet OSHA 29 CFR 1910.243 are compliant with standards for hand-held equipment.

For Wheel Dia.	Max. Rotation Speed, rpm	For Arbor Hole Thread Size	Voltage, V AC	Current, amp	Switch Type	Speed Control Type	Overall Lg.	Wt., lb.	Specs. Met	Certification	Mfr. Model No.	Each
4 1/2"	12,000	5/8"-11	120	11	Paddle	Fixed	14"	5.5	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	0000000
5"	11,500	5/8"-11	120	13	Paddle	Fixed	12 1/4"	5.75	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	000000
7", 9"	6,500	5/8"-11	120	15	Trigger	Fixed	21"	13.75	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	000000

Accessories and Replacements for Angle Grinders

Backup Pads

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.

For Disc Dia.	Max. Rotation Speed, rpm	Arbor Hole Thread Size	Includes	Each
4 1/2"	18,000	5/8"-11	Disc Nut	000000
5"	18,000	5/8"-11	Disc Nut	00000
7"	8,600	5/8"-11	Disc Nut	00000
9", 9 1/8"	7,000	5/8"-11	Disc Nut	00000

Angle Grinder Wheel Guards

Wheel guards are required when using grinding wheels and cups.

	For Grinding Wheel
	Dia.	Designation	For Mfr. Model No.		Each
For Milwaukee Grinders



		4 1/2"	Type 1	6142-31	00000000	000000


		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	6088-30	00000000	00000

For Wheel Dia.	For Arbor Hole Thread Size	For Wheel Thk.	Includes	Sold As		Each
6" to 9"	5/8"-11	1/16" to 1/4"	Flange, Hex Key, Mounting Nut	Set	00000000	000000

	For Mfr. Model No.
For Milwaukee Grinders


6088-30	000000000	000000
6117-30	000000000	0000
6142-31	000000000	00000

	For Mfr. Model No.
For Milwaukee Grinders


6088-30	000000000	000000
6117-30	000000000	00000
6142-31	000000000	00000

	For Mfr. Model No.
For Milwaukee Grinders


6117-30, 6140-30, 6142-31	00000000	00000
6088-30	00000000	0000

	For Mfr. Model No.
For Milwaukee Grinders


6117-30, 6142-31	000000000	00000

Rotary Tool Safety Guards for Dremel Grinders


160° Coverage	360° Coverage

Protect yourself from sparks or flying debris when using your rotary tool.

160° Coverage—Guards with 160° coverage only cover part of your rotary tool, so they're compact. They have a spring-friction design that lets you rotate them for quick adjustment and access to your rotary tool accessory.

360° Coverage—Guards with 360° coverage close automatically.

	For Mfr. Model No.	Includes		Each
160° Coverage



	1 1/2"	100, 100-N/7, 200, 285, 3000, 3000-1/24, 3965-02, 3981-01, 4000, 4000-2/30, 4300, 7760, 7800-01, 7800-02, 8000, 8200, 8220, 8220-1/28, 8240, 8250, 8260	1 1/2" Cutoff Wheel, Grinding Bit, Wheel Brush	0000000	000000


	360° Coverage



			1 1/2"	100, 100-N/7, 200, 285, 3000, 3000-1/24, 3965-02, 3981-01, 4000, 4000-2/30, 4300, 7760, 7800-01, 7800-02, 8000, 8200, 8220, 8220-1/28, 8240, 8250, 8260	1 1/2" Cutoff Wheel	0000000	00000

Chip Guards for Bench and Pedestal Grinders


Style A	Style B	Style C

Styles A and C—Styles A and C swivel up and down.

Style B—Style B is lighted and uses a 60-watt light bulb.

		Panel								Each
Style	For Grinder Size	Ht.	Wd.	Mateirial	Frame Material	Electrical Connection Type	Bulbs Included	Certification		Each	Pair



	A	7" to 14"	4"	6"	Acrylic Plastic	—	—	—	—	000000	0	0000000


	B	6" to 14"	3 3/4"	5 1/2"	Acrylic Plastic	Aluminum	Plug In	No	UL Listed, CSA Certified	000000	0000000	0
	C	6" to 8"	5 1/2"	5 3/4"	Polycarbonate	Aluminum	—	—	—	0000000	000000	0
	C	6" to 8"	8 1/2"	6 1/2"	Polycarbonate	Aluminum	—	—	—	0000000	000000	0

Replacements for Chip Guards


Replacement 60-Watt Bulb for Style B	Pkg. of 4	000000
5 ½" Ht. × 5 ¾" Wd. Polycarbonate Replacement Panel	Each	00000
8 ½" Ht. × 6 ½" Wd. Polycarbonate Replacement Panel	Each	00000

OSHA/ANSI Bench Grinder Safety Gauges

Also known as safety scales, these gauges confirm that the gaps between the grinding wheel and the tool rest and tongue comply with OSHA and ANSI requirements.

Lg.	Wd.	Measuring Sizes	Material	Color	Specs. Met		Each
3 1/8"	2"	1/8", 1/4"	Aluminum	Orange	OSHA Compliant 29 CFR 1910.215, ANSI/UAMA B7.1, ANSI B11.9	000000	000000

Dust Hoods for Angle Grinders

Connect these dust hoods to your vacuum system to contain and remove dust and fine particles while grinding or cutting. They fit all major brands of angle grinders, including DeWalt, Milwaukee, and Makita. These dust hoods are OSHA compliant for point-of-origin dust containment. To attach these dust hoods to a standard 2" dia. vacuum hose, they either include an adapter hose or you can add a vacuum adapter (sold separately).

Grinding


ABS	Nylon

ABS—ABS dust hoods are disposable, so they’re good for quick jobs. Cut away the front edge of the hood to grind close to a wall or an edge. They don’t come with an adapter hose.

Nylon—Nylon dust hoods contain glass filler, so they’re durable and resist abrasion. They have a sliding front edge for grinding close to a wall or an edge.

						For 5" Diameter Wheel		For 7" Diameter Wheel
	For Vacuum Hose Dia.	Inlet Dia.	Reusable	Includes	Specs. Met		Each		Each
ABS



		1 1/4"	1 1/4"	No	—	OSHA Compliant 29 CFR 1926.1153	0000000	000000	0000000	000000


		Nylon



				2"	1 1/4"	Yes	18" Adapter Hose	OSHA Compliant 29 CFR 1926.1153	0000000	000000	0000000	000000

Vacuum Adapters

For Vacuum Hose Dia.	Dia.	Lg.		Each
2"	1 1/4" × 2 1/4"	18"	0000000	000000

Cutting

Dust hoods for cutting cover the wheel of your angle grinder while tuck-pointing and crack chasing.

						For 5" Diameter Wheel		For 7" Diameter Wheel
	For Vacuum Hose Dia.	Inlet Dia.	Reusable	Includes	Specs. Met		Each		Each
Polycarbonate



		2"	1 1/4"	Yes	18" Adapter Hose	OSHA Compliant 29 CFR 1926.1153	0000000	0000000	0000000	0000000

Vacuum Adapters

For Vacuum Hose Dia.	Dia.	Lg.		Each
2"	1 1/4" × 2 1/4"	18"	0000000	000000

Rotary Tool Guides for Dremel Grinders


Rotary Tool Guide Shown In Use (Rotary Tool Not Included)	Rotary Tool Guide, Sanding Sleeve Drum, and Grinding Stone

Sharpen, grind, and sand at exact 45° and 90° angles.

Lg.	Ht.	For Mfr. Model No.	Includes		Each
2 1/2"	2"	100, 100-N/7, 200, 3000, 3000-1/24, 4000, 4000-2/30, 4300, 7760-N/10, 8220, 8220-1/28, 8240, 8250, 8260	1/2" Sanding Sleeve Drum—60 Grit, Grinding Stone	000000	000000

OSHA/ANSI Machine Guard Safety Gauges

Verify machine guard openings are sized to prevent hands and fingers from reaching hazards. These gauges check whether a machine guard complies with OSHA, CSA, or ANSI requirements. The gauge should not be able to touch equipment through any gap for the machine guard to meet requirements.

Lg.	Folded Lg.	Material	Color	Specs. Met		Each
19 1/2"	10 1/2"	Aluminum	Yellow	CAN/CSA-Z434, CSA Z142, CSA Z432, ANSI B11, ANSI/RIA R15.06	000000	000000
33 1/2"	12"	Aluminum	Yellow	OSHA Compliant 29 CFR 1910.217	000000	00000

Heavy Duty Air-Powered Straight Die Grinders for Bits and Burs with Dust Hood


Style A	Style B

Collect the dust, debris, and fine particulates you generate while grinding by attaching the plastic dust hood on these die grinders to a vacuum system. With high-quality bearings and collets for long spindle life, these die grinders are rated for continuous use to take on tough jobs.

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

1/10 hp—_1/10 hp die grinders are high-speed, lightweight, pencil-sized tools.

2/5 hp—_2/5 hp die grinders have a lever lock to prevent accidental start-up. You can trim the hood sleeve horizontally or vertically to accommodate accessories and workpieces.

Die Grinders																Replacement Hoods
						Inlet			Speed Control
Style	Max. Rotation Speed, rpm	Power, hp	For Shank Dia.	Airflow @ Pressure	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Type	Switch Type	Overall Lg.	Wt., lb.	Includes		Each		Each



	A	25,000	2/5	1/4"	21 ft³/min @ 90 psi	Back	NPT	1/4	1 1/4"	Variable	Lever	10 5/8"	1.5	3 1/2" Vacuum Hose with Swivel Cuff, Collet, Collet Wrench, Dust Hood	0000000	0000000	0000000	000000


	B	35,000	1/10	1/8"	8 ft³/min @ 90 psi	Back	NPT	1/4	1/4"	Fixed	—	5 1/4"	1.125	2-ft. Air Hose, Collet, Collet Wrench, Dust Hood	0000000	000000	———	0

Dremel Rotary Tool Drywall Cutter Kits

Make controlled cuts in drywall, fiberglass, and laminate.

	For Mfr. Model No.	Includes		Each
For Drywall, Fiberglass, and Laminate



	4	100, 100-N/7, 200, 285, 3000, 3000-1/24, 3965-02, 4000, 4000-2/30, 7800-02, 8000, 8100-N/21, 8200, 8220-1/28, 8240, 8250, 8260	Two Bits for Cutting Drywall, One Bit for Cutting Fiberglass and Laminate, One Cutting Guide	0000000	000000

Dremel Rotary Tool Tile Cutter Kits


For Ceramic	For Grout

Create stable, controlled cuts in tile or grout with a guide and bit that allow maximum visibility.

For Grout—Kits for grout have a special guide that keeps the bit centered in the grout line at a 30° angle.

	Max. Cutting Dp.	For Mfr. Model No.	Includes		Each
For Ceramic



	2	3/4"	100, 100-N/7, 200, 285, 3000, 3000-1/24, 3965-02, 4000, 4000-2/30, 7800-02, 8000, 8100-N/21, 8200, 8220-1/28, 8240, 8250, 8260	One Bit for Cutting Ceramic Tile, One Cutting Guide	0000000	000000


	For Grout



			2	1/2"	200, 285, 3000, 3000-1/24, 3965-02, 4000, 4000-2/30, 7800-02, 8000, 8100-N/21, 8200, 8220-1/28, 8240, 8250, 8260	One Bit for Grout Removal, One Cutting Guide	0000000	00000