Pneumatic Grinders | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For Shank Diameter For Shank Diameter

1/8"

1/4"

6mm

	For Use With For Use With

Cup Brushes

Cutoff Wheels

Grinders for Bits and Burs

Raised-Hub Grinding Wheels

Sanding Discs

Wheel Brushes

	Maximum Speed Maximum Speed

30,000 rpm or greater

	Head Angle Head Angle

60°

90°

98°

	Inlet Pipe Size Inlet Pipe Size

1/8

1/4

3/8

	For Wheel Diameter For Wheel Diameter

4 1/2"

	Exhaust Location Exhaust Location

Rear

Front

	Power Power

	Overall Length Overall Length

	For Arbor Hole Size For Arbor Hole Size

3/8"-24

5/8"-11

	For Hose ID For Hose ID

	Airflow Airflow

	Speed Control Switch Type Speed Control Switch Type

Lever

Ring

	Weight Weight

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

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Size Size

	For Holding For Holding

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

REACH Compliant

	Manufacturer Manufacturer

	For Manufacturer For Manufacturer

	For Manufacturer Model Number For Manufacturer Model Number

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56 Products

Light Duty Air-Powered Straight Grinders for Bits and Burs

Use these grinders for light, intermittent grinding, deburring, and finishing.

They are also known as die grinders.

Style A has a lever lock to prevent accidental start-up.

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

Grinders
						Inlet			Speed Control						Replacement Inch Collets		Replacement Metric Collets
	Max. Speed, rpm	Power, hp	For Shank Dia.	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Type	Switch Type	O'all Lg.	Wt., lbs.		Each		Each		Each
A	19,000	1/2	1/4"	4 cfm @ 90 psi	Rear	NPT	1/4	3/8"	__	Lever	6 1/2"	1.125	0000000	000000	0000000	000000	000000	00
A	22,000	1/2	1/4"	4 cfm @ 90 psi	Rear	NPT	1/4	3/8"	__	Lever	6 3/4"	1.375	0000000	00000	0000000	00000	000000	00
A	22,000	2/5	6mm, 1/4"	13 cfm @ 90 psi	Rear	NPT	1/4	3/8"	__	Lever	5 3/4"	1.25	0000000	000000	0000000	00000	0000000	000000
B	70,000	1/10	1/8"	5.3 cfm @ 90 psi	Rear	NPT	1/4	1/4"	Variable	Ring	5 3/8"	0.25	0000000	000000	0000000	00000	000000	00
C	30,000	3/10	6mm, 1/4"	12 cfm @ 90 psi	Front	NPT	1/4	3/8"	__	Lever	4 3/4"	0.75	0000000	000000	0000000	00000	0000000	00000
D	26,000	3/10	1/4"	4 cfm @ 90 psi	Front	NPT	1/4	3/8"	__	Lever	5 3/8"	0.875	0000000	000000	0000000	00000	000000	00

1/4" to 1/8" Collet Reducer Bushing

00000000

Each

00000

Light Duty Air-Powered Straight Grinder Kits for Bits and Burs

Grinder and Bit Kit

Grinder and Bur Kit

Kits include a light duty grinder and a variety of tools for intermittent grinding on most metals.

They are also known as die grinders.

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

						Inlet
For Use With	Max. Speed, rpm	Power, hp	For Shank Dia.	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Switch Type	O'all Lg.	Wt., lbs.	Includes		Each
Grinding Bits	22,000	1/2	1/4"	4 cfm @ 90 psi	Rear	NPT	1/4	3/8"	Lever	6 3/4"	1 3/8	Light Duty Grinder, Aluminum Oxide Grinding Bits, 1/8" Shank Diameter (5), Aluminum Oxide Grinding Bits, 1/4" Shank Diameter (5), Reducing Bushing 1/4" to 1/8", Collet, Wrenches (2), Plastic Case	0000000	000000
Grinding Burs	22,000	1/2	1/4"	4 cfm @ 90 psi	Rear	NPT	1/4	3/8"	Lever	6 3/4"	1 3/8	Light Duty Grinder, Solid Carbide Double-Cut Burs (7), Collet, Wrenches (2), Plastic Case	0000000	000000

Heavy Duty Air-Powered Straight Grinders for Bits and Burs

High-quality bearings ensure long spindle life, even when grinders are used continuously.

They are also known as die grinders.

Styles A and B have a lever lock to prevent accidental start-up. Style C is a high-speed, lightweight, pencil-sized tool.

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

Grinders
						Inlet			Speed Control						Replacement Collets		Replacement Collet Guards
	Max. Speed, rpm	Power, hp	For Shank Dia.	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Type	Switch Type	O'all Lg.	Wt., lbs.		Each		Each		Each
A	25,000	1	1/4"	25 cfm @ 90 psi	Rear	NPT	3/8	3/8"	__	Lever	13 1/8"	2 3/4	0000000	0000000	0000000	000000	000000	00
B	18,000	3/5	1/4"	30 cfm @ 90 psi	Rear	NPT	1/4	5/16"	__	Lever	6 7/8"	1 1/2	00000000	000000	00000000	00000	00000000	000000
B	18,000	1	1/4"	14 cfm @ 90 psi	Rear	NPT	3/8	3/8"	__	Lever	8 3/8"	1 5/8	0000000	000000	0000000	00000	000000	00
B	25,000	0.3	1/4"	16 cfm @ 90 psi	Rear	NPT	1/4	1/4"	__	Lever	6"	3/4	00000000	000000	00000000	00000	00000000	00000
B	25,000	2/5	1/4"	20 cfm @ 90 psi	Front, Rear	NPT	1/4	3/8"	__	Lever	6 1/8"	3/4	0000000	000000	0000000	00000	000000	00
B	25,000	1	1/4"	25 cfm @ 90 psi	Rear	NPT	3/8	3/8"	__	Lever	8 3/8"	1 5/8	0000000	000000	0000000	00000	000000	00
B	35,000	2/5	1/4"	25 cfm @ 90 psi	Front, Rear	NPT	1/4	3/8"	__	Lever	6 1/8"	3/4	0000000	000000	0000000	00000	000000	00
C	60,000	1/10	1/8"	9 cfm @ 90 psi	Rear	NPT	1/8	3/16"	Variable	Ring	5 7/8"	3/8	0000000	000000	0000000	00000	0000000	00000

Optional 3/32" Collet for Style C	0000000	Each	000000
1/4" to 1/8" Collet Reducer Bushing	00000000	Each	0000

Medium Duty Air-Powered Straight Grinders for Bits and Burs

More durable than our Light Duty Grinders, these are designed for more frequent use.

They are also known as die grinders. They have a lever lock to prevent accidental start-up.

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

Grinders
							Inlet								Replacement Collets
	Max. Speed, rpm	Power, hp	For Shank Dia.	Chuck Size	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Speed Control Switch Type	O'all Lg.	Wt., lbs.		Each		Each
A	24,000	1/2	1/4"	__	10.5 cfm @ 90 psi	Rear	NPT	1/4	3/8"	Lever	5 3/4"	1 1/4	0000000	0000000	0000000	000000
B	25,000	1/2	1/4"	1/4"	5 cfm @ 90 psi	Front	NPT	1/4	3/8"	Lever	6 1/2"	1 1/4	0000000	000000	000000	00
C	22,000	0.9	1/4"	__	5.5 cfm @ 90 psi	Rear	NPT	1/4	3/8"	Lever	12"	2 1/2	00000000	000000	00000000	00000

1/4" to 1/8" Collet Reducer Bushing

00000000

Each

00000

Light Duty Air-Powered Angle Grinders for Bits and Burs

Use these grinders for occasional light grinding, deburring, and finishing.

They are also known as die grinders.

Grinders have an angled head for accessing hard-to-reach places and a lever lock to prevent accidental start-up.

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

					Inlet
Max. Speed, rpm	Power, hp	For Shank Dia.	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Speed Control Switch Type	Head Angle	O'all Lg.	Wt., lbs.		Each
21,000	1/4	1/4"	6 cfm @ 90 psi	Front	NPT	1/4	3/8"	Lever	90°	5 1/4"	1	0000000	000000
25,000	0.3	1/4"	4 cfm @ 90 psi	Rear	NPT	1/4	3/8"	Lever	90°	6 1/8"	1 1/8	0000000	00000

1/4" to 1/8" Collet Reducer Bushing

00000000

Each

00000

Light Duty Air-Powered Angle Grinder Kits for Bits and Burs

Kit includes a light duty grinder and an assortment of tools for occasional grinding, deburring, and finishing.

It has an angled head for accessing hard-to-reach places and a lever lock to prevent accidental start-up.

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

					Inlet
Max. Speed, rpm	Power, hp	For Shank Dia.	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Speed Control Switch Type	O'all Lg.	Wt., lbs.	Includes		Each
21,000	1/4	1/4"	6 cfm @ 90 psi	Front	NPT	1/4	3/8"	Lever	5 1/4"	1	Light Duty Grinder, 1/8" Shank Diameter Grinding Bits (5), 1/4" Shank Diameter Grinding Bits (5), 1/8" Collet, Wrenches (2), Plastic Case	0000000	0000000

1/4" to 1/8" Collet Reducer Bushing

00000000

Each

00000

Medium Duty Air-Powered Angle Grinders for Bits and Burs

More durable than our Light Duty Grinders, these are designed for more frequent use.

They are also known as die grinders.

Grinders have an angled head for accessing hard-to-reach places and a lever lock to prevent accidental start-up.

Style B has a 60° angled head to get into spots a right-angle grinder can't reach and a soft grip to reduce vibration.

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

						Inlet
	Max. Speed, rpm	Power, hp	For Shank Dia.	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Speed Control Switch Type	Head Angle	O'all Lg.	Wt., lbs.		Each
A	20,000	0.33	1/4"	6 cfm @ 90 psi	Rear	NPT	1/4	3/8"	Lever	90°	7"	1 1/4	0000000	0000000
A	25,000	0.3	1/4"	3 cfm @ 90 psi	Rear	NPT	1/4	3/8"	Lever	90°	6"	1 1/8	0000000	000000
B	18,000	1/2	1/4"	3.3 cfm @ 90 psi	Rear	NPT	1/4	3/8"	Lever	60°	7 3/4"	1 3/4	0000000	000000

1/4" to 1/8" Collet Reducer Bushing

00000000

Each

00000

Heavy Duty Air-Powered Angle Grinders for Bits and Burs

With high-quality bearings and collets for long spindle life, these grinders are rated for continuous use to take on tough jobs.

They are also known as die grinders.

Grinders have an angled head for accessing hard-to-reach places and a lever lock to prevent accidental start-up. Style A has sealed bearings to minimize maintenance. Style B has heavy duty gears and precision collets for smooth operation and long tool life; exhaust can be changed from rear to front. Style C is a high-speed, lightweight, pencil-sized tool.

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

						Inlet
	Max. Speed, rpm	Power, hp	For Shank Dia.	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Speed Control Switch Type	Head Angle	O'all Lg.	Wt., lbs.		Each
A	12,000	2/5	1/4"	22 cfm @ 90 psi	Front	NPT	1/4	1/4"	Lever	90°	6 5/8"	1 1/8	00000000	0000000
A	20,000	2/5	1/4"	22 cfm @ 90 psi	Front	NPT	1/4	1/4"	Lever	90°	6 5/8"	1 1/8	00000000	000000
B	12,000	1	1/4"	17 cfm @ 90 psi	Front, Rear	NPT	3/8	3/8"	Lever	90°	9"	3 1/2	0000000	000000
B	20,000	2/5	1/4"	25 cfm @ 90 psi	Front, Rear	NPT	1/4	3/8"	Lever	90°	6"	1 1/8	0000000	000000
C	80,000	1/10	1/8"	9 cfm @ 90 psi	Rear	NPT	1/8	3/16"	Ring	98°	5 1/2"	3/8	0000000	000000

1/8" Replacement Collet for 4343A82	0000000	Each	000000
1/4" to 1/8" Collet Reducer Bushing	00000000	Each	0000

Medium Duty Air-Powered Angle Grinders for Grinding Wheels and Sanding Discs

More durable than our Light Duty Grinders, these are designed for more frequent use.

Grinders have an angled head for accessing hard-to-reach places and a threaded spindle. They have a lever lock to prevent accidental start-up.

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

						Inlet			Speed Control
For Wheel Dia.	Max. Speed, rpm	Power, hp	For Arbor Hole Size	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Type	Switch Type	O'all Lg.	Wt., lbs.		Each
4"	11,000	3/4	3/8"-24	12 cfm @ 90 psi	Front	NPT	1/4	3/8"	Variable	Lever	9"	4	00000000	0000000
7"	4,500	1	5/8"-11	12 cfm @ 90 psi	Front	NPT	1/4	3/8"	Variable	Lever	12"	5 3/4	00000000	000000

Heavy Duty Air-Powered Angle Grinders for Grinding Wheels and Sanding Discs

Rated for continuous use to take on tough jobs, these grinders have heavy duty gears for smooth operation and long tool life.

Grinders have an angled head for accessing hard-to-reach places and a threaded spindle. They have a lever lock to prevent accidental start-up.

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

						Inlet			Speed Control
For Wheel Dia.	Max. Speed, rpm	Power, hp	For Arbor Hole Size	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Type	Switch Type	O'all Lg.	Wt., lbs.		Each
4"	12,000	1	3/8"-24	17 cfm @ 90 psi	Rear	NPT	3/8	3/8"	Variable	Lever	9 1/4"	3 3/4	0000000	0000000
4 1/2"	12,000	1	5/8"-11	17 cfm @ 90 psi	Rear	NPT	3/8	3/8"	Variable	Lever	9 1/4"	3 3/4	0000000	000000

Light Duty Air-Powered Angle Grinders for Grinding Wheels and Sanding Discs

Use these grinders for light, intermittent grinding and sanding.

Grinders have an angled head for accessing hard-to-reach places and a threaded spindle. They have a lever lock to prevent accidental start-up.

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

						Inlet			Speed Control
For Wheel Dia.	Max. Speed, rpm	Power, hp	For Arbor Hole Size	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Type	Switch Type	O'all Lg.	Wt., lbs.		Each
4"	11,000	3/4	3/8"-24	6 cfm @ 90 psi	Front	NPT	1/4	3/8"	Variable	Lever	9"	4	00000000	0000000

Air-Powered Straight Grinders for Wheels and Cones

Use these grinders with straight (Type 1) grinding wheels. They are smaller and lighter than our Electric Straight Grinders.

Grinders have a lever lock to prevent accidental start-up. Style B has a regulator that maintains constant speed when grinding.

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

							Inlet			Speed Control
	For Wheel Dia.	Max. Speed, rpm	Power, hp	For Arbor Hole Size	Airflow	Exhaust Location	Thread Type	Pipe Size	For Hose ID	Type	Switch Type	O'all Lg.	Wt., lbs.		Each
A	3"	18,000	1	3/8"-24	14 cfm @ 90 psi	Rear	NPT	3/8	3/8"	Variable	Lever	13 3/8"	3 1/4	00000000	0000000
B	3"	12,000	1	3/8"-24	38 cfm @ 90 psi	Rear	NPT	3/8	3/8"	Variable	Lever	14 1/4"	4	00000000	000000
B	4"	12,000	1	3/8"-24	38 cfm @ 90 psi	Rear	NPT	3/8	3/8"	Variable	Lever	8 5/8"	2 3/4	00000000	000000

Collets for Air-Powered Bit and Bur Grinders

Collets					1/4" to 1/8" Reducing Collet Bushing
Size	Manufacturer Model Number	For Manufacturer Model Number		Each		Each
For Chicago Pneumatic Grinder
1/4"	C138727	CP860, CP872, CP876	0000000	000000	00000000	00000
6 mm	C139289	CP860, CP872, CP875, CP876	0000000	00000	000000	00
For Dotco Grinder
3/32"	102	1040400-08, 10R0401-18, 10R401-16, 10R9000-08, 12R0400-18, 12R0401-16, 12R9180-08	0000000	00000	000000	00
1/8"	01-0100	12R0380-18	0000000	00000	000000	00
1/8"	100PT	12R0400-18	0000000	00000	000000	00
1/4"	208	12L2082-01	00000000	00000	00000000	0000
1/4"	308PT	12L1082-36	00000000	00000	00000000	0000
For Ingersoll Rand Grinder
1/4"	DG110-700-G4	G1H250RG4, G1H350RG4	0000000	00000	00000000	0000
1/4"	G160HD-700-1/4	G2H180RG4, G2H250RG4, G2X250RG4	0000000	00000	00000000	0000
For Rockford Grinder
1/4"	R3420-04	R3420	0000000	00000	00000000	0000
For Sioux Tools Grinder
1/8"	68736	5979A	0000000	00000	000000	00
1/4"	SP66459	5053A, 5054A-19K	0000000	00000	00000000	0000
For St. Louis Pneumatic Grinder
1/4"	3063	SLP-83150	0000000	00000	00000000	0000
For Universal Tool Grinder
1/4"	892233	UT8728E	00000000	00000	00000000	0000