McMaster-Carr

		Box End		Open End
Size	Overall Lg.	Head Offset Angle	Head Thick.	Opening Angle	Head Thick.	Material	Specifications Met		Each
Dull Chrome Plated
12-Point Box Opening
20 mm	10 13/16"	15°	1/2"	15°	27/64"	Steel	ASME B107.100	0000000	000000
Polished Chrome Plated
12-Point Box Opening
20 mm	10 7/8"	15°	1/2"	15°	27/64"	Steel	ASME B107.100	0000000	00000
Black
12-Point Box Opening
20 mm	10 13/16"	15°	1/2"	15°	27/64"	Steel	ASME B107.100	00000000	00000

Ratcheting Combination Wrenches

A ratchet mechanism in the box end allows you to turn fasteners in tight spaces without removing and repositioning the wrench. Flip these wrenches over to ratchet in the opposite direction. The smaller the turn required to ratchet, the less clearance you need to engage the ratchet. Wrenches are polished for a mirror-like finish.

		Box End		Open End
Size	Overall Lg.	Head Thick.	Turn Required to Ratchet	Opening Angle	Head Thick.	Material	Appearance		Each
12-Point Box Opening
20 mm	11"	1/2"	5°	10°	3/8"	Chrome-Plated Steel	Polished	0000000	000000

Premium Combination Wrench Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish. Wrenches with a 12-point opening are easier to position on hex fasteners than wrenches with a 6-point opening but make less contact. Polished wrenches have a mirror-like finish.

Metric Wrench Sets—12-Point Box Opening
Size	Overall Lg.	Box-End Head Offset Angle	Open-End Opening Angle	Material	Finish	Appearance	Container Type	Specifications Met		Each
15-Piece Sets
7 mm 8 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm 24 mm 26 mm 27 mm 29 mm 30 mm 32 mm	5 3/8"-17"	15°	15°	Steel	Chrome Plated	Polished	Fabric Pouch	__	0000000	0000000
17-Piece Sets
6 mm 7 mm 8 mm 9 mm 10 mm 11 mm 12 mm 13 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm 20 mm 21 mm 22 mm	5"-11 3/4"	15°	15°	Steel	Chrome Plated	Dull	Fabric Pouch	__	0000000	000000
18-Piece Sets
7 mm 8 mm 9 mm 10 mm 11 mm 12 mm 13 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm 20 mm 21 mm 22 mm 23 mm 24 mm	5 1/4"-12 3/4"	15°	15°	Steel	Chrome Plated	Polished	Fabric Roll-Up Pouch	ASME B107.100	0000000	000000

Value Combination Wrench Sets

For high quality at a lower price, choose these U.S.A.-made sets.

Metric Wrench Sets—12-Point Box Opening
Size	Overall Lg.	Box-End Head Offset Angle	Open-End Opening Angle	Material	Appearance	Container Type		Each
17-Piece Sets
6 mm 7 mm 8 mm 9 mm 10 mm 11 mm 12 mm 13 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm 20 mm 21 mm 22 mm	4"-11 5/8"	15°	15°	Chrome-Plated Steel	Dull	Plastic Roll-Up Pouch	0000000	0000000

Economy Combination Wrench Sets


Chrome-Plated Steel
Chrome-Plated Steel

Suitable for occasional maintenance work, these sets are imported.

Polished wrenches have a mirror-like finish.

Metric Wrench Sets—12-Point Box Opening
Size	Overall Lg.	Box-End Head Offset Angle	Open-End Opening Angle	Material	Appearance	Container Type		Each
13-Piece Sets
8 mm 9 mm 10 mm 11 mm 12 mm 13 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm 20 mm	5 9/16"-11 3/8"	15°	15°	Chrome-Plated Steel	Polished	Plastic Organizer	000000	000000

Two-Head Open-End Wrenches

Rounded Openings

Wrenches with square openings provide the best grip on square fasteners.

						Polished Chrome Plated
Size	Overall Lg.	Opening Angle	Head Thick.	Material	Specifications Met		Each
Rounded Openings
20 mm × 22 mm	10 3/4"	15°	3/8" × 3/8"	Steel	ASME B107.100	0000000	000000

60° Angle Open-End Wrenches

One head is angled 60° for access to hard-to-reach fasteners. These tools are also known as ignition wrenches.

						Dull Chrome Plated
Size	Overall Lg.	Opening Angle	Head Thick.	Material	Specifications Met		Each
20 mm × 20 mm	7 1/4"	15° × 60°	9/32" × 9/32"	Steel	ASME B107	0000000	000000

Open-End Wrench Sets

Metric Wrench Sets
Sizes Included	Overall Lg.	Opening Angle	Material	Appearance	Container Type	Specifications Met		Each
10-Piece Sets
6 mm × 7 mm 8 mm × 9 mm 10 mm × 11 mm 12 mm × 13 mm 14 mm × 15 mm 16 mm × 17 mm 18 mm × 19 mm 20 mm × 22 mm 21 mm × 23 mm 24 mm × 26 mm (Dull Appearance)	4 1/2"-8 1/4"	15°	Chrome-Plated Steel	Polished	Fabric Roll-Up Pouch	ASME B107.100	0000000	0000000
12-Piece Sets
6 mm × 7 mm 8 mm × 9 mm 10 mm × 11 mm 12 mm × 13 mm 14 mm × 15 mm 16 mm × 17 mm 18 mm × 19 mm 20 mm × 22 mm 21 mm × 23 mm 24 mm × 26 mm 25 mm × 28 mm 27 mm × 30 mm	4 1/2"-11 7/8"	15°	Chrome-Plated Steel	Dull	Plastic Roll-Up Pouch	__	0000000	000000

6-Point Sockets

Standard

Deep

Achieve the best possible grip on hex fasteners and prevent rounding.

Standard
Size	Material	Specifications Met	Overall Lg.		Each
3/8" Square Drive
20 mm	Chrome-Plated Steel	ASME B107.110	1 3/16"	0000000	00000
1/2" Square Drive
20 mm	Chrome-Plated Steel	ASME B107.110, SAE AS955	1 1/2"	0000000	0000
Deep
3/8" Square Drive
20 mm	Chrome-Plated Steel	ASME B107.110, SAE AS955	2 3/4"	0000000	00000
1/2" Square Drive
20 mm	Chrome-Plated Steel	ASME B107.5M	3 1/8"	00000000	00000

12-Point Sockets

Standard

Deep

The 12-point shape quickly positions on hex fasteners. These sockets are for hand-driven use only.

		Standard			Deep
Size	Material	Overall Lg.		Each	Overall Lg.		Each
Chrome Plated
3/8" Square Drive
20 mm	Steel	1 3/16"	0000000	00000	2 3/4"	0000000	000000
1/2" Square Drive
20 mm	Steel	1 1/2"	0000000	0000	3 1/4"	0000000	00000
3/4" Square Drive
20 mm	Steel	2"	0000000	00000	__	000000	00

Universal-Fit Sockets

Turn many sizes of square, hex, and 8-point fasteners with one socket. Place over the fastener and 54 pins move to grip it securely.

1/2" Square Drive
Size	Overall Lg.	OD	Material		Each
7/16" - 31/32", 11 mm - 32 mm	3 1/2"	1 11/16"	Chrome-Plated Steel	0000000	000000

Tight-Clearance Offset Sockets

Often used with an extension, these sockets turn fasteners and fittings in obstructed areas that a regular socket can't reach. They are also known as crowfoot wrenches.

3/8" Square Drive
Size	Overall Lg.	Thick.	Center-to-Center Lg.	Material		Each
20 mm	1 15/16"	17/64"	1"	Chrome-Plated Steel	0000000	000000
1/2" Square Drive
20 mm	2 5/8"	3/8"	1 5/8"	Chrome-Plated Steel	0000000	00000

6-Point Impact Sockets

Standard

Deep

Achieve the best possible grip on hex fasteners and prevent rounding. These sockets are made to withstand the high torque and force of impact tools.

3/4", 1", and 1 1/2" square drive size sockets require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.

3/8" Square Drive Size

			Standard			Deep
Size	Material	Finish	Overall Lg.		Each	Overall Lg.		Each
20 mm	Steel	Black	1 1/8"	0000000	00000	2 5/8"	0000000	00000

1/2" Square Drive Size

			Standard			Deep
Size	Material	Finish	Overall Lg.		Each	Overall Lg.		Each
20 mm	Steel	Black	1 1/2"	0000000	00000	3 1/4"	0000000	000000

3/4" Square Drive Size

Standard

Sockets							Retaining Rings
Size	Compatible Retaining Ring ID	Material	Finish	Overall Lg.		Each		Each
20 mm	1 7/16"	Steel	Black	1 15/16"	00000000	000000	0000000	00000

6-Point Flex Impact Sockets

Standard

Pivot the head to access fasteners from an angle. These sockets have a hex shape that grips hex fasteners and prevents rounding. They are made to withstand the high torque and force of impact tools.

			Standard
Size	Material	Finish	Overall Lg.		Each
1/2" Square Drive
20 mm	Steel	Black	2 9/16"	0000000	000000

12-Point Impact Sockets

Standard

The 12-point shape quickly positions on hex fasteners. These sockets are made to withstand the high torque and force of impact tools.

			Standard
Size	Material	Finish	Overall Lg.		Each
1/2" Square Drive
20 mm	Steel	Black	1 1/2"	0000000	00000

Premium 6-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish. The hex shape grips hex fasteners and prevents rounding.

Sockets—Chrome-Plated Steel

1/2" Square Drive
No. of Pieces	Includes		Each
15	Standard Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm	000000	0000000

Premium 12-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish. The 12-point shape quickly positions on hex fasteners.

Sockets—Chrome-Plated Steel

1/2" Square Drive
No. of Pieces	Includes		Each
15	Deep Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 24 mm, 25 mm	0000000	0000000
15	Standard Sockets: 10 mm, 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, 20 mm, 22 mm, 23 mm, 24 mm, 26 mm, 27 mm, 30 mm, 32 mm	0000000	000000
3/4" Square Drive
13	Standard Sockets: 19 mm, 20 mm, 22 mm, 24 mm, 27 mm, 30 mm, 32 mm, 36 mm, 41 mm, 46 mm, 50 mm, 55 mm, 60 mm	0000000	000000

Sockets with Drive Tools—Chrome-Plated Steel

1/2" Square Drive
No. of Pieces	Components Included	Includes		Each
20	17 Sockets 2 Drive Tools 1 Extension	Standard Sockets: 10 mm, 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 26 mm, 27 mm, 30 mm, 32 mm, 36 mm 10 3/8" Long Ratchet Wrench 17" Long Flex-Head Wrench Handle 5 1/2" Long Extension	00000000	0000000

Foam Socket Organizer for 22 Piece 3/4" Square Drive Size Set

0000000

Each

0000000

6-Point Impact Socket Sets

Sockets

The hex shape grips hex fasteners and prevents rounding. These sockets are made to withstand the high torque and force of impact tools.

3/4" square drive size sockets require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.

1/2" Square Drive—Steel
No. of Pieces	Components Included	Includes	Finish		Each
16	16 Sockets	Standard Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 27 mm	Black	0000000	0000000
16	16 Sockets	Deep Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 27 mm	Black	0000000	000000
3/4" Square Drive—Steel
12	12 Sockets	Standard Sockets: 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 27 mm, 30 mm, 32 mm, 36 mm, 41 mm, 46 mm	Black	00000000	000000

Deep-Offset Box Wrenches

The heads are angled to provide clearance around obstructions.

12-Point Openings
Size	Overall Lg.	Head Offset Angle	Head Thick.	Material	Appearance	Specifications Met		Each
20 mm × 22 mm	12 3/4"	45°	17/32" × 17/32"	Chrome-Plated Steel	Dull	ASME B107	0000000	000000

L-Keys

Standard Tip

Hex

Turn fasteners from either end and reach into tight spots.

	Length
Size	Overall	Long Leg	Short Leg	Material	Finish		Each
Standard Tip
Hex
20 mm	8 1/4"	7 1/4"	2 7/8"	Steel	Black	0000000	000000

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