Knocker Wrenches | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Size Size

	Wrench Style Wrench Style


Box	Open End

	Opening Shape Opening Shape


12-Point	6-Point

Rounded

	Head Style Head Style


Offset	Standard

	For Drive Style For Drive Style


External Hex	External 12-Point	External Square

	Overall Length Overall Length

	Material Material

Steel

Aluminum-Bronze

	Head Thickness Head Thickness

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

DFARS Specialty Metals
COTS-Exempt

	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

	Finish Finish

Black

Chrome Plated

	Specifications Met Specifications Met

ASME

DIN

	Jaw Type Jaw Type

Fixed

Adjustable

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132 Products

Deep-Offset Striking Box Wrenches

The head is offset 45° to provide clearance for reaching over obstructions. Also known as slugging wrenches, strike the handle with a hammer to break stuck fasteners free.

12-Point Opening
Size	Overall Lg.	Head Thick.	Head Offset Angle	Material	Finish	Specifications Met		Each
1 1/16"	10"	3/4"	45°	Steel	Black	ASME B107	0000000	000000
1 1/8"	10"	3/4"	45°	Steel	Black	ASME B107	0000000	00000
1 3/16"	11"	27/32"	45°	Steel	Black	ASME B107	0000000	00000
1 1/4"	11"	27/32"	45°	Steel	Black	ASME B107	0000000	00000
1 5/16"	11"	27/32"	45°	Steel	Black	ASME B107	0000000	00000
1 3/8"	11 1/2"	15/16"	45°	Steel	Black	ASME B107	0000000	00000
1 7/16"	11 1/2"	15/16"	45°	Steel	Black	ASME B107	0000000	00000
1 1/2"	11 1/2"	15/16"	45°	Steel	Black	ASME B107	0000000	00000
1 9/16"	12"	1 1/8"	45°	Steel	Black	ASME B107	0000000	00000
1 5/8"	12"	1 1/16"	45°	Steel	Black	ASME B107	0000000	00000
1 11/16"	12"	1 1/16"	45°	Steel	Black	ASME B107	0000000	00000
1 3/4"	12"	1 1/16"	45°	Steel	Black	ASME B107	0000000	000000
1 13/16"	13"	1 3/16"	45°	Steel	Black	ASME B107	0000000	000000
1 7/8"	13"	1 3/16"	45°	Steel	Black	ASME B107	0000000	000000
1 15/16"	13"	1 3/16"	45°	Steel	Black	ASME B107	0000000	000000
2"	13"	1 3/16"	45°	Steel	Black	ASME B107	0000000	000000
2 1/16"	13 1/2"	1 1/4"	45°	Steel	Black	ASME B107	0000000	000000
2 1/8"	13 1/2"	1 5/16"	45°	Steel	Black	ASME B107	0000000	000000
2 3/16"	13 1/2"	1 5/16"	45°	Steel	Black	ASME B107	0000000	000000
2 1/4"	13 1/2"	1 5/16"	45°	Steel	Black	ASME B107	0000000	000000
2 5/16"	14"	1 7/16"	45°	Steel	Black	ASME B107	0000000	000000
2 3/8"	14"	1 7/16"	45°	Steel	Black	ASME B107	0000000	000000
2 1/2"	14"	1 7/16"	45°	Steel	Black	ASME B107	0000000	000000
2 9/16"	15"	1 5/8"	45°	Steel	Black	ASME B107	0000000	000000
2 5/8"	15"	1 5/8"	45°	Steel	Black	ASME B107	0000000	000000
2 3/4"	15"	1 5/8"	45°	Steel	Black	ASME B107	0000000	000000
2 7/8"	16"	1 7/8"	45°	Steel	Black	ASME B107	0000000	000000
2 15/16"	16"	1 7/8"	45°	Steel	Black	ASME B107	0000000	000000
3"	16"	1 7/8"	45°	Steel	Black	ASME B107	0000000	000000
3 1/8"	16"	1 7/8"	45°	Steel	Black	ASME B107	0000000	000000
3 3/8"	18"	2 3/8"	45°	Steel	Black	ASME B107	0000000	000000
3 1/2"	18"	2 3/8"	45°	Steel	Black	ASME B107	0000000	000000
3 3/4"	18"	2 3/8"	45°	Steel	Black	ASME B107	0000000	000000
3 7/8"	18"	2 3/8"	45°	Steel	Black	ASME B107	0000000	000000
4 1/8"	18"	2 3/8"	45°	Steel	Black	ASME B107	0000000	000000
4 1/4"	18"	2 3/8"	45°	Steel	Black	ASME B107	0000000	000000
32 mm	11"	27/32"	45°	Steel	Black	ASME B107	0000000	00000
36 mm	11 1/2"	15/16"	45°	Steel	Black	ASME B107	0000000	00000
41 mm	12"	1 1/16"	45°	Steel	Black	ASME B107	0000000	00000
50 mm	13"	1 3/16"	45°	Steel	Black	ASME B107	0000000	000000
60 mm	14"	1 7/16"	45°	Steel	Black	ASME B107	0000000	000000

Striking Box Wrenches

6-Point Opening

12-Point Opening

Also known as slugging wrenches, strike the handle with a hammer to break stuck fasteners free. Wrenches with a 12-point opening are easier to position on hex fasteners than wrenches with a 6-point opening but make less contact.

For technical drawings and 3-D models, click on a part number.

6-Point Opening
Size	Overall Lg.	Head Thick.	Material	Finish	Specifications Met		Each
1 1/16"	9 7/8"	5/8"	Steel	Black	ASME B107	0000000	000000
1 1/4"	10 1/4"	23/32"	Steel	Black	ASME B107	0000000	00000
1 7/16"	10 5/8"	7/8"	Steel	Black	ASME B107	0000000	00000
1 5/8"	11"	61/64"	Steel	Black	ASME B107	0000000	00000
1 13/16"	11 3/8"	63/64"	Steel	Black	ASME B107	0000000	00000
2"	11 3/4"	1 7/32"	Steel	Black	ASME B107	0000000	00000
2 3/16"	12"	1 1/4"	Steel	Black	ASME B107	0000000	000000
2 3/8"	12 1/2"	1 7/16"	Steel	Black	ASME B107	0000000	000000
2 9/16"	12 3/4"	1 17/32"	Steel	Black	ASME B107	0000000	000000
2 3/4"	13 1/4"	1 17/32"	Steel	Black	ASME B107	0000000	000000
2 15/16"	13 1/2"	1 17/32"	Steel	Black	ASME B107	0000000	000000
3 1/8"	14"	1 5/8"	Steel	Black	ASME B107	0000000	000000
3 1/2"	14 1/4"	1 23/32"	Steel	Black	ASME B107	0000000	000000
3 7/8"	14 1/2"	1 23/32"	Steel	Black	ASME B107	0000000	000000
12-Point Opening
1 1/16"	9 7/8"	5/8"	Steel	Black	ASME B107	0000000	00000
1 3/16"	10 1/4"	23/32"	Steel	Black	ASME B107	0000000	00000
1 1/4"	10 1/4"	23/32"	Steel	Black	ASME B107	0000000	00000
1 5/16"	10 1/4"	23/32"	Steel	Black	ASME B107	0000000	00000
1 3/8"	10 5/8"	7/8"	Steel	Black	ASME B107	0000000	00000
1 7/16"	10 5/8"	7/8"	Steel	Black	ASME B107	0000000	00000
1 1/2"	10 5/8"	7/8"	Steel	Black	ASME B107	0000000	00000
1 5/8", 41 mm	7 7/8"	1 5/32"	Steel	Black	__	0000000	00000
1 11/16", 43 mm	7 7/8"	1 5/32"	Steel	Black	__	0000000	00000
1 3/4"	11 3/8"	63/64"	Steel	Black	ASME B107	0000000	00000
1 13/16", 46 mm	7 7/8"	1 1/4"	Steel	Black	__	0000000	00000
1 7/8"	11 3/8"	63/64"	Steel	Black	ASME B107	0000000	00000
2"	11 3/4"	1 7/32"	Steel	Black	ASME B107	0000000	000000
2 1/16"	11 3/4"	1 7/32"	Steel	Black	ASME B107	0000000	000000
2 1/8"	12"	1 1/4"	Steel	Black	ASME B107	0000000	000000
2 3/16"	12"	1 1/4"	Steel	Black	ASME B107	0000000	000000
2 1/4"	12 1/2"	1 7/16"	Steel	Black	ASME B107	0000000	000000
2 3/8"	12 1/2"	1 7/16"	Steel	Black	ASME B107	0000000	000000
2 9/16"	12 3/4"	1 17/32"	Steel	Black	ASME B107	0000000	000000
2 5/8"	12 3/4"	1 17/32"	Steel	Black	ASME B107	0000000	000000
2 3/4"	13 1/4"	1 17/32"	Steel	Black	ASME B107	0000000	000000
2 15/16"	13 1/2"	1 17/32"	Steel	Black	ASME B107	0000000	000000
3"	14"	1 5/8"	Steel	Black	ASME B107	0000000	000000
3 1/8"	14"	1 5/8"	Steel	Black	ASME B107	0000000	000000
3 3/8"	14 1/4"	1 23/32"	Steel	Black	ASME B107	0000000	000000
3 1/2"	14 1/4"	1 23/32"	Steel	Black	ASME B107	0000000	000000
3 3/4"	14 1/2"	1 23/32"	Steel	Black	ASME B107	0000000	000000
3 7/8"	14 1/2"	1 23/32"	Steel	Black	ASME B107	0000000	000000
4 1/8"	16 1/4"	2 7/8"	Steel	Black	ASME B107	0000000	000000
4 1/4"	16 1/4"	2 7/8"	Steel	Black	ASME B107	0000000	000000
4 1/2"	18 1/4"	3"	Steel	Black	ASME B107	0000000	000000
4 5/8"	18 1/4"	3"	Steel	Black	ASME B107	0000000	000000
36 mm	10 5/8"	7/8"	Steel	Black	ASME B107	0000000	00000
50 mm	11 5/8"	1 13/32"	Steel	Black	__	0000000	000000

Nonsparking Striking Box Wrenches

Made of aluminum-bronze that is Factory Mutual approved, these wrenches inhibit sparking and are nonmagnetic and corrosion resistant. They satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present. Also known as slugging wrenches, strike the handle with a hammer to break stuck fasteners free.

Warning: Do not use these tools in direct contact with acetylene.

6-Point Opening
Size	Overall Lg.	Head Thick.	Material	Specifications Met		Each
1 1/4"	6 1/2"	11/16"	Aluminum-Bronze	FM Approved	0000000	0000000
1 7/16"	7 1/2"	13/16"	Aluminum-Bronze	FM Approved	0000000	000000
1 1/2"	8 3/4"	1"	Aluminum-Bronze	FM Approved	0000000	000000
1 5/8"	8 3/4"	1"	Aluminum-Bronze	FM Approved	0000000	000000
1 13/16"	9 7/8"	1"	Aluminum-Bronze	FM Approved	0000000	000000
2"	10 5/8"	1 1/16"	Aluminum-Bronze	FM Approved	0000000	000000

Striking Open-End Wrenches

Strike the handle with a hammer to break stuck fasteners free. These are also known as slugging wrenches.

For technical drawings and 3-D models, click on a part number.

Size	Overall Lg.	Opening Angle	Head Thick.	Material	Specifications Met		Each
1"	7 1/8"	15°	5/8"	Steel	DIN 133	00000000	000000
1 1/16"	7 1/8"	15°	5/8"	Steel	DIN 133	00000000	00000
1 1/4"	7 1/8"	15°	43/64"	Steel	DIN 133	00000000	00000
1 5/16"	7 1/8"	15°	43/64"	Steel	DIN 133	00000000	00000
1 7/16"	8 1/2"	15°	11/16"	Steel	DIN 133	00000000	00000
1 1/2"	8 1/2"	15°	11/16"	Steel	DIN 133	00000000	00000
1 5/8"	9 1/4"	15°	47/64"	Steel	DIN 133	00000000	000000
1 11/16"	9 1/4"	15°	5/8"	Steel	DIN 133	00000000	000000
1 3/4"	9 1/4"	15°	47/64"	Steel	DIN 133	00000000	000000
1 13/16"	10"	15°	25/32"	Steel	DIN 133	00000000	000000
1 7/8"	10"	15°	25/32"	Steel	DIN 133	00000000	000000
2"	10 7/8"	15°	53/64"	Steel	DIN 133	00000000	000000
2 1/8"	10 7/8"	15°	53/64"	Steel	DIN 133	00000000	000000
2 1/4"	11 7/8"	15°	29/32"	Steel	DIN 133	00000000	000000
2 3/8"	12 3/4"	15°	31/32"	Steel	DIN 133	00000000	000000
2 1/2"	12 3/4"	15°	31/32"	Steel	DIN 133	00000000	000000
2 5/8"	13 1/2"	15°	1 1/16"	Steel	DIN 133	00000000	000000
2 3/4"	14 3/4"	15°	1 3/16"	Steel	DIN 133	00000000	000000
3"	14 3/4"	15°	1 3/16"	Steel	DIN 133	00000000	000000
3 3/4"	17 1/2"	15°	1 1/2"	Steel	DIN 133	00000000	000000
27 mm	7 1/8"	15°	5/8"	Steel	__	0000000	00000
30 mm	7 1/2"	15°	43/64"	Steel	__	0000000	00000
32 mm	7 1/2"	15°	43/64"	Steel	__	0000000	00000
36 mm	8 1/2"	15°	11/16"	Steel	__	0000000	000000
41 mm	9 1/4"	15°	47/64"	Steel	__	0000000	000000
46 mm	10 1/8"	15°	25/32"	Steel	__	0000000	000000
50 mm	10 7/8"	15°	53/64"	Steel	__	0000000	000000
55 mm	11 7/8"	15°	29/32"	Steel	__	0000000	000000
60 mm	12 3/4"	15°	31/32"	Steel	__	0000000	000000
65 mm	13 1/2"	15°	1 1/16"	Steel	__	0000000	000000
70 mm	14 3/4"	15°	1 3/16"	Steel	__	0000000	000000
75 mm	14 3/4"	15°	1 3/16"	Steel	__	0000000	000000
80 mm	16 1/4"	15°	1 11/32"	Steel	__	0000000	000000
85 mm	16 1/4"	15°	1 11/32"	Steel	__	0000000	000000
90 mm	17 1/2"	15°	1 1/2"	Steel	__	0000000	000000
95 mm	17 1/2"	15°	1 1/2"	Steel	__	0000000	000000

Adjustable Wrenches with Hammer Face

Flip the wrench over to use the raised section on the head as a hammer.

	Jaw
Overall Lg.	Max. Capacity	Texture		Each
Chrome-Plated Steel
12"	1 3/4"	Smooth	000000000	000000