3.2 mm Hex Drivers | McMaster-Carr

Make fine-tuned adjustments to electronics and other components. These give you better control than standard nutdrivers to avoid stripping tiny nuts or cracking fragile materials. Press the end of the handle with your palm to apply constant pressure while turning the handle with your fingertips.

Nickel-Plated Steel—Similar corrosion resistance to chrome plating to withstand salt water and chemicals. However, nickel is more likely to wear off over time.

Ultra Grip—Contoured and coated with soft plastic for a secure grip and maximum comfort.

			Shaft
Drive Size, mm	Bolt Clearance	Overall Lg.	Lg.	Overall Wd.	Material	Grip Style		Each
3.2	9/16"	6 3/16"	2 3/8"	1/4"	Nickel-Plated Steel	Ultra Grip	52965A25	00000

6-Point Sockets

The hex shape achieves the best possible grip on hex fasteners to prevent rounding their points. For use with hand-drive tools only.

Chrome-Plated Steel


Standard Clearance	6-Point Socket

						Standard Clearance
	Drive Size, mm	OD	Specs. Met	Socket Shape	For Drive Style	Overall Lg.		Each
1/4" Square Drive



		3.2	27/64"	ASME B107.5M, DIN 3124, EN 3709, ISO 2725-1	6-Point	External Hex	15/16"	7195A74	00000

Miniature Open-End Wrench Sets

Hex Opening

Take on precision tasks with assorted sizes of extra slim heads. The wrenches in these sets are just the right size for assembling electronics, building models, and repairing small appliances.

Hex Opening—Snugly grip the sides rather then the corners of commonly used hex-head fasteners so they won't slip, even when the nuts and bolts are rusted or damaged.

Black-Oxide Steel—The dark, matte coating protects these wrenches from wear and won't flake off. They offer minimal corrosion resistance, though, so they're best for dry environments.

	Opening Angle	Container Type		Each
Hex Opening







	Black-Oxide Steel

	8	2.5 mm 3 mm 3.2 mm 4 mm 5 mm 5.5 mm 6 mm 7 mm	4 1/8"	30°	Plastic Pouch	7793A41	000000

Stubby Open-End Wrench Sets

Round

Opening

Assorted sizes of these short open-end wrenches are perfect for spots that don't have enough clearance for full-sized tools. Their compact design lets you make full turns without hitting or disassembling surrounding parts. They are often used to fasten bolts in cramped engine compartments and tight plumbing jobs. For tasks that require more muscle, longer wrenches may be necessary.

Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.

Chrome-Plated Steel—The most popular finish, these wrenches won't rust or chip. Although they withstand moisture better than black oxide, they don't hold up to harsh chemicals as well as stainless steel.

Dull—With a textured finish, these wrenches won't slip out of your hands, even when greasy or oily.

	Opening Angle	Appearance	Container Type	Specs. Met		Each
Round Opening







	Chrome-Plated Steel

	6	3.2 mm × 5.5 mm 4 mm × 5 mm 6 mm × 7 mm 8 mm × 9 mm 10 mm × 11 mm 12 mm × 13 mm	2 3/4" to 4 3/8"	15°	Dull	Plastic Roll-Up Pouch	ISO 3318	5739A11	000000

Miniature Open-End Wrenches


	Hex Opening

Take on precision tasks with extra slim heads. These wrenches are just the right size for assembling electronics, building models, and repairing small appliances.

Hex Opening—Snugly grip the sides rather then the corners of commonly used hex-head fasteners so they won't slip, even when the nuts and bolts are rusted or damaged.

Black-Oxide Steel—The dark, matte coating protects these wrenches from wear and won't flake off. They offer minimal corrosion resistance, though, so they're best for dry environments.

	Head Thk.		Each
Hex Opening







	Black-Oxide Steel

	3.2	4 1/8"	30°	1/16"	7793A33	00000

Stubby Combination Wrenches

6-Point

Opening

Turn nuts and bolts in tight spaces. These wrenches are up to 50% shorter than others to squeeze into spots without enough clearance to make full turns, such as engine compartments. However, you may need longer wrenches for higher-leverage jobs.

6-Point Opening—Avoid rounding off the corners of hex fasteners. These wrenches won't slip, even when nuts and bolts are rusted or damaged, since they grip the sides rather than the corners.

Polished—The smooth surface is easy to wipe clean of grime. The mirror-like finish lends a high-end look to any toolkit.

			Box End		Open End
	Drive Size, mm	Overall Lg.	Head Offset Angle	Head Thick.	Opening Angle	Head Thick.	Appearance		Each
6-Point Opening







				Chrome-Plated Steel

				3.2	2 3/4"	15°	3/32"	22.5°	3/32"	Polished	5314A35	000000

Tight-Clearance Angled Open-End Wrench Sets

Round

Opening

Keep a collection of sizes handy to turn thin, awkwardly placed fasteners tucked away in confined spaces. Use the 60° or 75° angled head to reach around obstacles and apply more force without constant repositioning. The two heads save you time and reduce the number of tools you need to keep on hand. Also known as ignition wrenches.

Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.

Dull—With a textured finish, these wrenches won't slip out of your hands, even when greasy or oily.

	Opening Angle	Appearance	Container Type		Each
Round Opening







	Chrome-Plated Steel

	16	3.2 mm 4 mm 5 mm 5.5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 11 mm 12 mm 13 mm 14 mm 15 mm 16 mm 17 mm	2 3/4" to 5 1/2"	15° × 75°	Dull	Fabric Roll-Up Pouch	8393A72	0000000