Dog Bone Wrenches | McMaster-Carr

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Ratcheting

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Turn Required to Ratchet

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

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EAR99

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15°

25°

Specifications Met

ASME B107.100

Fed. Spec. GGG-W-001405

Performance

75 Products

Two-Head Ratcheting Box Wrenches


4-Point Openings	4-Point and 6-Point Openings	6-Point Openings

12-Point Openings	Torx Openings

Ratchet mechanisms allow you to turn fasteners in tight spaces without removing and repositioning the tool.

The smaller the turn required to ratchet, the less clearance you need to engage the ratchet.

12-Point Opening—Wrenches with 12-point openings are easier to position on hex fasteners than wrenches with 6-point openings but make less contact.

	Overall Lg.	Head Thk.	Turn Req. to Ratchet	Material	Appearance	Specs. Met		Each
4-Point Openings



	3/16", 1/4" × 5/16", 3/8"	5 1/2"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5473A12	000000


	4-Point and 6-Point Openings



			3/16", 1/4" × 1/2", 9/16"	7"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5473A11	00000


			6-Point Openings



					1/4" × 5/16"	4 3/8"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A1	00000


					3/8" × 7/16"	5 1/2"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A2	00000
					1/2" × 9/16"	6 7/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A3	00000
					7 mm × 8 mm	4 3/8"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A11	00000
					9 mm × 10 mm	5 1/2"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A12	00000
					11 mm × 12 mm	6 7/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A13	00000
					11 mm × 13 mm	6 7/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A16	00000
					12 mm × 14 mm	6 7/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A17	00000
					13 mm × 14 mm	6 7/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A14	00000


					12-Point Openings



							1/4" × 5/16"	4 3/8"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A31	00000


							3/8" × 7/16"	5 1/2"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A32	00000
							1/2" × 9/16"	6 7/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A33	00000
							5/8" × 11/16"	8 1/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A4	00000
							5/8" × 3/4"	8 1/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A5	00000
							11/16" × 7/8"	9 1/4"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A83	00000
							3/4" × 7/8"	9 1/4"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A8	00000
							13/16" × 7/8"	9 1/4"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A6	00000
							13/16" × 15/16"	9 1/4"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A9	00000
							7 mm × 8 mm	4 3/8"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5688A21	00000
							9 mm × 10 mm	5 1/2"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5688A22	00000


							11 mm × 12 mm	6 7/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5688A23	00000
							13 mm × 14 mm	6 7/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5688A24	00000
							15 mm × 17 mm	8 1/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A15	00000
							16 mm × 18 mm	8 1/8"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A24	00000
							19 mm × 21 mm	9 1/4"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	7235A25	00000


							Torx Openings



									E6 × E8	5 1/8"	11/16" × 17/64"	5°	Chrome-Plated Steel	Polished	—	6065A13	00000


									E10 × E12	5 7/8"	13/16" × 19/64"	5°	Chrome-Plated Steel	Polished	—	6065A15	00000
E14 × E18									7 1/2"	1 1/8" × 25/64"	5°	Chrome-Plated Steel	Polished	—	6065A17	00000

Box Wrench Heads

Attach one of these heads to your square-drive ratchet or torque wrench to extend its reach or to access spaces with limited vertical clearance. Add an extension to get to an obstructed fastener.

When used with a ratchet wrench, it can also help you get more leverage to break a stuck bolt loose. When used with a torque wrench, you can easily calculate your desired torque setting with the precise 2" center-to-center length. Also known as torque adapters.

The box end grips all sides of the fastener to prevent slipping. For use with hand-drive tools only.

	Overall Lg.	Thk.	Ctr.-to-Ctr. Lg.	Material	Wrench Opening Shape		Each
3/8" Square Drive



	3/8"	2 11/16"	17/64"	2"	Chrome-Plated Steel	12-Point	55015A21	000000


	7/16"	2 3/4"	19/64"	2"	Chrome-Plated Steel	12-Point	55015A22	00000
	1/2"	2 13/16"	21/64"	2"	Chrome-Plated Steel	12-Point	55015A23	00000
	9/16"	2 7/8"	23/64"	2"	Chrome-Plated Steel	12-Point	55015A24	00000
	5/8"	2 7/8"	25/64"	2"	Chrome-Plated Steel	12-Point	55015A25	00000
	11/16"	2 15/16"	27/64"	2"	Chrome-Plated Steel	12-Point	55015A26	00000
	3/4"	3"	29/64"	2"	Chrome-Plated Steel	12-Point	55015A27	00000
	13/16"	2 15/16"	31/64"	2"	Chrome-Plated Steel	12-Point	55015A28	00000
	7/8"	3 1/16"	33/64"	2"	Chrome-Plated Steel	12-Point	55015A29	00000

Box Wrench Head Sets


Wrench Not Included

Attach one of the heads in these sets to a torque wrench for more leverage to loosen a stubborn fastener. Also known as torque adapters. You can easily calculate your desired torque setting with the precise 2” center-to-center length. The wrench heads can also be connected to an extension to reach fasteners when vertical clearance is limited. The box end grips all sides of the fastener to prevent slipping. For use with hand-drive tools only.

	Includes	Ctr.-to-Ctr. Lg.	Material	Wrench Opening Shape	Container Type		Each
3/8" Square Drive



	9	Wrench Heads: 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"	2"	Chrome-Plated Steel	12-Point	Metal Bar	55015A35	0000000


	10	Wrench Heads: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm	2"	Chrome-Plated Steel	12-Point	Plastic Case	55015A111	00000

Ratcheting Box Wrench Sets

A ratchet mechanism allows you to turn fasteners in tight spaces without removing and repositioning the wrench. The smaller the turn required to ratchet, the less clearance you need to engage the ratchet. These wrenches are polished for a mirror-like finish.

	Sizes Included	Material	Container Type	Specs. Met		Each
6-Point and 12-Point Openings







		3-Piece Sets

		6-Point: 3/8" × 7/16", 1/2" × 9/16" 12-Point: 5/8" × 11/16"	4 1/2" to 6 7/8"	25°	Chrome-Plated Steel	Plastic Pouch	Fed. Spec. GGG-W-001405	5364A17	000000




				5-Piece Sets

				6-Point: 1/4" × 5/16", 3/8" × 7/16", 1/2" × 9/16" 12-Point: 5/8" × 11/16", 3/4" × 7/8"	4 1/2" to 9 1/4"	25°	Chrome-Plated Steel	Plastic Pouch	Fed. Spec. GGG-W-001405	5364A13	00000


				6-Point: 7 mm × 8 mm, 9 mm × 10 mm, 11 mm × 13 mm, 12 mm × 14 mm 12-Point: 15 mm × 17 mm	4 1/2" to 8 1/8"	25°	Chrome-Plated Steel	Plastic Pouch	Fed. Spec. GGG-W-001405	7235A23	00000




						6-Piece Sets

						6-Point: 1/4" × 5/16", 3/8" × 7/16", 1/2" × 9/16" 12-Point: 5/8" × 11/16", 3/4" × 7/8", 13/16" × 15/16"	4 1/2" to 9 1/4"	25°	Chrome-Plated Steel	Plastic Pouch	Fed. Spec. GGG-W-001405	5364A15	00000


						12-Point Openings







										3-Piece Sets

										3/8" × 7/16" 1/2" × 9/16" 5/8" × 3/4"	5 1/2" to 8 1/8"	25°	Chrome-Plated Steel	Plastic Pouch	Fed. Spec. GGG-W-001405	5364A19	00000


										9 mm × 10 mm 13 mm × 14 mm 15 mm × 17 mm	5 1/2" to 8 1/8"	25°	Chrome-Plated Steel	Plastic Pouch	Fed. Spec. GGG-W-001405	7235A27	00000




												5-Piece Sets

												1/4" × 5/16" 3/8" × 7/16" 1/2" × 9/16" 5/8" × 3/4" 11/16" × 7/8"	4 1/2" to 9 1/4"	25°	Chrome-Plated Steel	Plastic Caddy	Fed. Spec. GGG-W-001405	5688A31	000000


												7 mm × 8 mm 9 mm × 10 mm 11 mm × 12 mm 13 mm × 14 mm 15 mm × 17 mm	4 1/2" to 9 1/4"	25°	Chrome-Plated Steel	Plastic Caddy	Fed. Spec. GGG-W-001405	5688A32	000000


												Torx Opening







																4-Piece Sets

E6 × E8 E10 × E12 E14 × E18 E20 × E24	5 1/8" to 9 1/8"															5°	Chrome-Plated Steel	—	—	6065A25	000000

Two-Head Box Wrenches

						Dull Chrome-Plated Steel		Polished Chrome-Plated Steel
	Drive Size	Overall Lg.	Head Offset Angle	Head Thk.	Specs. Met		Each		Each
12-Point Openings



		5/16" × 3/8"	8 7/8"	15°	9/32" × 21/64"	—	———	0	5458A12	000000


		7/16" × 1/2"	10 3/4"	15°	23/64" × 3/8"	—	———	0	5458A13	00000
		1/2" × 9/16"	11 1/2"	15°	3/8" × 13/32"	—	5458A15	000000	———	0
		9/16" × 5/8"	12 1/2"	15°	13/32" × 15/32"	—	———	0	5458A17	00000
		11/16" × 3/4"	14 3/8"	15°	1/2" × 17/32"	—	———	0	5458A24	00000
		3/4" × 7/8"	15 7/8"	15°	17/32" × 37/64"	—	———	0	5458A31	00000
		15/16" × 1"	10 1/2"	15°	9/16" × 39/64"	ASME B107.100	5458A37	00000	———	0
		1 1/16" × 1 1/8"	16 1/4"	15°	41/64" × 43/64"	—	5458A44	000000	———	0

Box Wrench Sets

These wrenches are polished for a mirror-like finish.

	Material	Appearance	Container Type	Specs. Met		Each
12-Point Openings







	7-Piece Sets

	5/16" × 3/8" 7/16" × 1/2" 9/16" × 5/8" 11/16" × 3/4" 13/16" × 7/8" 15/16" × 1" 1 1/16" × 1 1/8"	7" to 16 1/4"	15°	Chrome-Plated Steel	Dull	Pouch	ASME B107.100	5458A72	0000000

Long-Reach Ratcheting Box Wrenches

An extra-long handle provides access to hard-to-reach fasteners and increases leverage. These wrenches have a ratchet mechanism that allows you to turn fasteners in tight spaces without removing and repositioning. Wrenches are polished for a mirror-like finish.

The smaller the turn required to ratchet, the less clearance you need to engage the ratchet.

	Overall Lg.	Head Thk.	Turn Req. to Ratchet	Material	Appearance	Specs. Met		Each
12-Point Openings



	1/4" × 5/16"	8"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A34	000000


	3/8" × 7/16"	10"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A35	00000
	1/2" × 9/16"	10"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A36	00000
	5/8" × 11/16"	12"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A41	00000
	3/4" × 7/8"	14"	9/16" × 9/16"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A82	00000
	1" × 1 1/16"	15"	9/16" × 9/16"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A21	00000
	1 1/16" × 1 1/8"	15"	9/16" × 9/16"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A24	00000
	1 1/16" × 1 1/4"	15"	9/16" × 9/16"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A25	00000
	1 1/8" × 1 3/16"	15"	9/16" × 9/16"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5461A22	00000

Deep-Offset Ratcheting Box Wrench Sets

The heads are offset to provide clearance for reaching over obstructions. These wrenches have a ratchet mechanism that allows you to turn fasteners in tight spaces without removing and repositioning the tool. The smaller the turn required to ratchet, the less clearance you need to engage the ratchet. They are polished for a mirror-like finish.

	Turn Req. to Ratchet	Material		Each
12-Point Openings







	5-Piece Sets

	1/4" × 5/16" 3/8" × 7/16" 1/2" × 9/16" 5/8" × 3/4" 11/16" × 7/8"	4 1/4" to 9 1/8"	25°	25°	Chrome-Plated Steel	6443A14	000000

Nonsparking 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.

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

	Overall Lg.	Head Offset Angle	Head Thk.	Material	Certification		Each
12-Point Openings



	7/16" × 1/2"	7 3/4"	15°	5/16" × 5/16"	Aluminum Bronze	FM Approved	6505A31	000000


	1/2" × 9/16"	9 1/2"	15°	7/16" × 1/2"	Aluminum Bronze	FM Approved	6505A13	00000
	9/16" × 5/8"	9 1/2"	15°	7/16" × 1/2"	Aluminum Bronze	FM Approved	6505A15	00000
	3/4" × 7/8"	12 1/4"	15°	9/16" × 5/8"	Aluminum Bronze	FM Approved	6505A33	00000
	15/16" × 1"	14 3/4"	15°	11/16" × 11/16"	Aluminum Bronze	FM Approved	6505A34	000000
	15/16" × 1 1/16"	15 1/4"	15°	11/16" × 11/16"	Aluminum Bronze	FM Approved	6505A21	000000