No. 10 Wrenches | McMaster-Carr

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Wrench Opening Shape

Round

Spline

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Tamper-Resistant Torx

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Ratcheting or Nonratcheting

Head Style

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Sold As

Overall Length

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Finish

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Plastic Roll-Up Pouch

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Bit

Driver

Number of Heads

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Shank Type

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Square Drive Size

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REACH

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Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

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10 Products

Spline Ratcheting Combination Wrenches

A spline-shaped box end turns spline, hex, and 12-point fasteners with minimal effort. This shape also gets a better grip on rounded fasteners that can be difficult to turn with a traditional wrench. These wrenches have a ratchet mechanism that allows you to turn fasteners in tight spaces without removing and repositioning. Flip over to ratchet in the opposite direction. Wrenches are polished for a mirror-like finish.

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

Box End					Open End
External Hex/12-Point Drive Size	External Spline Drive Size	Head Offset Angle	Head Thick.	Turn Required to Ratchet	External Hex/Square/12-Point Drive Size	Opening Angle	Head Thick.	Overall Lg.	Material	Appearance		Each
Inch
5/16"	No. 10	15°	17/64"	5°	5/16"	15°	11/64"	5 7/16"	Chrome-Plated Steel	Polished	0000000	000000
Metric
10 mm	No. 10	15°	19/64"	5°	10 mm	15°	13/64"	5 59/64"	Chrome-Plated Steel	Polished	0000000	00000

Spline Ratcheting Combination Wrench Sets

A spline-shaped box end turns spline, hex, and 12-point fasteners. This shape also gets a better grip on rounded fasteners that can be difficult to turn with a traditional wrench. These wrenches have a ratchet mechanism that allows you to turn fasteners in tight spaces without removing and repositioning the tool. Wrenches are polished for a mirror-like finish.

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

Box End				Open End
External Hex/12-Point Size	External Spline Size	Head Offset Angle	Turn Required to Ratchet	External 12-Point Size	Opening Angle	Overall Lg.	Material	Container Type		Each
Inch Wrench Sets
11-Piece Sets
1/4" 9/32" 5/16" 11/32" 3/8" 7/16" 1/2" 9/16" 5/8" 11/16" 3/4"	No. 8 No. 9 No. 10 No. 11 No. 12 No. 14 No. 16 No. 18 No. 20 No. 22 No. 24	15°	5°	1/4" 9/32" 5/16" 11/32" 3/8" 7/16" 1/2" 9/16" 5/8" 11/16" 3/4"	15°	5 1/8"-11"	Chrome-Plated Steel	Plastic Roll-Up Pouch	0000000	0000000
Metric Wrench Sets
14-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	No. 6 No. 7 No. 8 No. 9 No. 10 No. 11 No. 12 No. 13 No. 14 No. 15 No. 16 No. 17 No. 18 No. 19	15°	5°	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	15°	4 15/16"-11 1/16"	Chrome-Plated Steel	Plastic Roll-Up Pouch	0000000	000000

Tri-Groove Sockets

Square Drive

Grip the indentations around the outside of tri-groove fasteners. These sockets are for hand-driven use only.

1/4" Square Drive
Drive Size	Overall Lg.	OD	For Fastener Type	For Screw Size (Head Dia.)	For Nut Size (Dia.)	Material		Each
No. 10	1"	31/64"	Screws and Nuts	1/4", No. 10, No. 12 Standard (0.334") 1/4" Countersunk (0.492")	No. 6, No. 8 (0.406")	Black-Oxide Steel	0000000	000000

Tri-Groove Socket Sets

Grip the indentations around the outside of tri-groove fasteners.

1/4" Square Drive—Steel
No. of Pieces	Components Included	Includes	Finish		Each
4	3 Sockets 1 Drive Tool	Standard Socket: No. 4 (For No. 4 Standard Screws and No. 6 Countersunk Screws) Standard Socket: No. 6 (For Nos. 6 and 8 Standard Screws and Nos. 8 and 10 Countersunk Screws) Standard Socket: No. 10 (For Nos. 10, 12, and 1/4" Standard Screws; 1/4" Countersunk Screws; and Nos. 6 and 8 Nuts) 8" Long Socket Screwdiver Handle	Black Oxide	0000000	000000

Bit Screwdrivers

With Plain Grip

Insert a bit into the shaft and a magnet holds it in place.

Tamper-resistant hex are also known as pin-in-hex.

Tamper-resistant Torx are also known as pin-in-Torx.

			Shaft		Material
No. of Sizes	Sizes Included	O'all Lg.	Lg.	O'all Wd.	Shaft	Bit	Handle	Grip Style	Features		Each
For 1/4" Bit Hex Shank Size
26	Drilled Spanner: No. 4, No. 6, No. 8, No. 10 Tamper-Resistant Hex: 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 2mm, 2.5mm, 3mm, 5mm Tamper-Reistant Torx: T7, T8, T10, T15, T20, T25, T27, T30, T40 Torq Set®: No. 6, No. 8, No. 10	8 1/2"	3 3/8"	5/16"	Stainless Steel	Steel	Plastic	Plain	Bit storage inside tool	0000000	000000

Bit Assortments

These assortments contain general-purpose bits.

Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.


Hex	Tamper-Resistant Hex	Phillips	Slotted
Torx	Drilled Spanner	Pozidriv®	Tamper-Resistant Torx

1/4" Hex Shank Size—Steel
No. of Pieces	Components Included	Bits Included	Adapters Included		Each
100	96 Bits 4 Adapters	Drilled Spanner: No. 4, No. 6, No. 8, No. 10 No. 12, 1/4" (1" O'all Lg.)—1 ea. Hex (Inch): 0.050", 1/16", 5/64", 3/32", 7/64" 1/8", 9/64", 5/32", 3/16", 7/32", 1/4" 5/16", 3/8" (1" O'all Lg.)—1 ea. Hex (Metric): 1.5 mm, 2 mm, 2.5 mm, 3 mm 4 mm, 5 mm, 6 mm, 7 mm, 8 mm (1" O'all Lg.)—1 ea. Phillips: No. 0 (1" O'all Lg.)—1 ea. Phillips: No. 1, No. 3 (1" O'all Lg.)—2 ea. Phillips: No. 2 (1" O'all Lg.)—4 ea. Pozidriv®: No. 1, No. 2, No. 3 (1" O'all Lg.)—1 ea. Screw-In Hook Driver Bit—1 ea. Slotted: 3/32", 1/8", 5/32", 3/16", 7/32", 1/4" 9/32", 5/16", 3/8" (1" O'all Lg.)—1 ea. Square: No. 0, No. 1, No. 2, No. 3, No. 4 (1" O'all Lg.)—1 ea. Tamper-Resistant Hex (Inch): 3/32" 7/64", 1/8", 9/64", 5/32", 3/16", 7/32" 1/4", 5/16" (1" O'all Lg.)—1 ea. Tamper-Resistant Hex (Metric): 2.5 mm, 3 mm 4 mm, 5 mm, 6 mm, 8 mm (1" O'all Lg.)—1 ea. Tamper-Resistant Torx: T6, T7, T8, T9, T10, T15 T20, T25, T27, T30, T40 (1" O'all Lg.)—1 ea. Torx: T5, T6, T7, T8, T9, T10, T15, T20, T25, T27 T30, T40, T45, T50, T55 (1" O'all Lg.)—1 ea.	1/4" Male Square Drive × 1/4" Hex Shank Adapter (1" O'all Lg.) 1/4" Male Square Drive × 1/4" Hex Shank Adapter (2" O'all Lg.) 2 1/2" Lg. Bit Adapter for Power Tools Bit Adapter for Square Drive Tools	000000	000000

Torq-Set® Bit Sets

Hex Shank

Hex Shank for Power Tools

These bits have an offset cross shape.

Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.

Hex shank bits for power tools have a groove in the shank and fit directly into power tools without an adapter. They offer more reach for recessed holes and less wobble compared to a hex shank bit used with an adapter.

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

1/4" Hex Shank Size
Components Included	Bits Included	Material	Container Type		Each
10 Bits	Torq-Set®: No. 4, No. 6, No. 8, No. 10, 1/4" (1" O'all Lg.)—2 ea.	Steel	__	00000000	000000
1/4" Hex Shank Size for Power Tools
10 Bits	Torq-Set®: No. 4, No. 6, No. 8, No. 10, 1/4" (1 1/4" O'all Lg.)—2 ea.	Steel	Plastic Caddy	00000000	00000