4.5 mm Hex Drivers | McMaster-Carr

When you don't have exact alignment between the fastener and the tool, the ball end allows angled entry to turn screws in hard-to-reach areas. These screwdrivers have a soft, contoured handle that provides comfort and the best possible grip for achieving maximum torque.

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

		Shaft
Size	Overall Lg.	Lg.	O'all Wd.	Max. Access Angle	Material	Finish	Handle Material		Each
Hex
4.5 mm	8 3/4"	4 5/16"	3/16"	25°	Steel	Black	Plastic	0000000	00000

Nutdrivers

These standard nutdrivers have a hollow shaft that provides clearance to remove nuts from long bolts.

			Shaft
Size	Overall Lg.	Bolt Clearance	Lg.	O'all Wd.	Material	Handle Material		Each
External Hex
4.5 mm	6 5/8"	3"	3"	5/16"	Chrome-Plated Steel	Plastic	0000000	00000

Nutdriver Sets

Sets include an assortment of nutdrivers.

External Hex
Number of Pieces	Includes	Bolt Clearance	Material	Handle Material	Container Type		Each
10	4 mm Nutdriver—6 5/8" O'all Lg. 4.5 mm Nutdriver—6 5/8" O'all Lg. 5 mm Nutdriver—6 5/8" O'all Lg. 5.5 mm Nutdriver—6 5/8" O'all Lg. 6 mm Nutdriver—6 5/8" O'all Lg. 7 mm Nutdriver—6 5/8" O'all Lg. 8 mm Nutdriver—6 5/8" O'all Lg. 9 mm Nutdriver—6 5/8" O'all Lg. 10 mm Nutdriver—7" O'all Lg. 11 mm Nutdriver—7" O'all Lg.	3"	Chrome-Plated Steel	Plastic	Metal Stand	0000000	000000

Precise-Control Screwdriver Sets

Hex

Phillips

Slotted

External Hex

Torx

Sets include an assortment of drivers with a rotating end cap on the handle that allows you to apply constant pressure with your palm while turning the body of the screwdriver with your fingertips. They are also known as precision and miniature screwdrivers.

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

Number of Pieces	Includes	Material	Finish	Handle Material	Container Type		Each
50	Phillips Screwdrivers: No. 000, No. 00, No. 0, No. 1 Slotted Screwdrivers: 1/32", 0.039", 3/64", 1/16", 0.070", 5/64", 3/32", 1/8", 9/64", 5/32" Hex Screwdrivers (Inch): 0.028", 0.035", 0.050", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32" Hex Screwdrivers (Metric): 1.27 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm Torx Screwdrivers: T1, T2, T3, T4, T5, T6, T7, T8, T9, T10 Nutdrivers: 1.5 mm, 1.8 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm 5 3/4" Lg. Chip Lifter	Steel	Chrome Plated	Plastic	Metal Frame	00000000	0000000

Static-Control Precise-Control Screwdriver Sets

Hex

Phillips

Slotted

External Hex

Torx

The handle on these assorted ESD-safe screwdrivers drains static away from your application, preventing buildup from electrostatic discharge (ESD) that can damage sensitive equipment. They meet IEC 61340-5-1 requirements for protecting electronic devices from electrostatic discharge. Press the rotating end cap on the handle to apply constant pressure with your palm while turning the body of the screwdriver with your fingertips.

Warning: Because the handle conducts electricity, screwdrivers must not come in contact with sources of electrical power.

Number of Pieces	Includes	Material	Handle Material	Surface Resistivity, ohms		Each
50	Phillips Screwdrivers: No. 000, No. 00, No. 0, No. 1 Slotted Screwdrivers: 0.031", 0.039", 0.047", 0.063", 0.079", 0.094", 0.125", 0.141", 0.157" Hex Screwdrivers (Inch): 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32" Hex Screwdrivers (Metric): 0.71 mm, 0.89 mm, 1.27 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm Torx Screwdrivers: T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T15, T20 Nutdrivers: (Metric) 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm; (Inch): 1/8", 5/32", 3/16", 1/4" 5 3/4" Lg. Chip Lifter	Chrome-Plated Steel	Plastic	10⁶-10⁹	0000000	0000000

Precise-Control Nutdrivers

Apply constant pressure to small hex nuts and cap screws. Press the rotating end cap on the handle with your palm while turning the body of the driver with your fingertips. These tools are also known as precision and miniature nutdrivers.

			Shaft
Size	Bolt Clearance	Overall Lg.	Lg.	O'all Wd.	Material	Handle Material		Each
External Hex
4.5 mm	5/8"	6 1/8"	2 7/16"	9/32"	Chrome-Plated Steel	Plastic	00000000	00000

Precise-Control Nutdriver Sets

Sets include an assortment of drivers that allow you to apply constant pressure to small hex nuts and cap screws. Press the rotating end cap on the handle with your palm while turning the body of the driver with your fingertips. They are also known as precision and miniature nutdrivers.

External Hex
Number of Pieces	Includes	Bolt Clearance	Material	Handle Material		Each
8	2.5 mm Nutdriver—6 1/8" O'all Lg. 3 mm Nutdriver—6 1/8" O'all Lg. 3.5 mm Nutdriver—6 1/8" O'all Lg. 4 mm Nutdriver—6 1/8" O'all Lg. 4.5 mm Nutdriver—6 1/8" O'all Lg. 5 mm Nutdriver—6 1/8" O'all Lg. 5.5 mm Nutdriver—6 3/4" O'all Lg. 6 mm Nutdriver—6 3/4" O'all Lg.	3/8"-11/16"	Chrome-Plated Steel	Plastic	00000000	000000

Static-Control Precise-Control Nutdrivers

Also known as ESD-safe nutdrivers, the handle drains static away from your application, preventing buildup from electrostatic discharge (ESD) that can damage sensitive equipment. Use the rotating end cap on the handle to apply constant pressure with your palm while turning the body of the driver with your fingertips.

Warning: Because the handle conducts electricity, nutdrivers must not come in contact with sources of electrical power.

			Shaft
Size	Bolt Clearance	Overall Lg.	Lg.	O'all Wd.	Material	Finish	Handle Material	Surface Resistivity, ohms		Each
External Hex
4.5 mm	1/2"	6 1/4"	2 1/2"	9/32"	Steel	Black	Plastic	10⁹-10¹¹	00000000	000000

Static-Control Precise-Control Nutdriver Sets

The handle on these assorted ESD-safe nutdrivers drains static away from your application, preventing buildup from electrostatic discharge (ESD) that can damage sensitive equipment. Press the rotating end cap to apply constant pressure with your palm while turning the body of the screwdriver with your fingertips.

Warning: Because the handle conducts electricity, nutdrivers must not come in contact with sources of electrical power.

External Hex
Number of Pieces	Includes	Material	Finish	Handle Material	Surface Resistivity, ohms	Container Type		Each
8	2 mm Nutdriver—6 1/4" O'all Lg. 2.2 mm Nutdriver—6 1/4" O'all Lg. 2.5 mm Nutdriver—6 1/4" O'all Lg. 3 mm Nutdriver—6 1/4" O'all Lg. 3.5 mm Nutdriver—6 1/4" O'all Lg. 4 mm Nutdriver—6 1/4" O'all Lg. 4.5 mm Nutdriver—6 1/4" O'all Lg. 5 mm Nutdriver—6 1/4" O'all Lg.	Steel	Black	Plastic	10⁹-10¹¹	Plastic Pouch	00000000	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
4.5 mm	3 1/8"	2 15/16"	1"	Steel	Black	0000000	00000
4.5 mm	4 11/16"	4 1/2"	1"	Steel	Black	0000000	000

L-Key Sets

With Plastic Caddy

Hex

Sets include an assortment of keys. These simple tools turn fasteners from either end and reach into tight spots.

Hex
Number of Pieces	Includes	Material	Finish	Container Type		Each
Long Length
15	1.27 mm Hex L-Key (2 7/8" O'all Lg.) 1.5 mm Hex L-Key (3 1/8" O'all Lg.) 2 mm Hex L-Key (3 3/8" O'all Lg.) 2.5 mm Hex L-Key (3 5/8" O'all Lg.) 3 mm Hex L-Key (4 1/8" O'all Lg.) 3.5 mm Hex L-Key (4 1/8" O'all Lg.) 4 mm Hex L-Key (4 1/2" O'all Lg.) 4.5 mm Hex L-Key (4 3/4" O'all Lg.) 5 mm Hex L-Key (5" O'all Lg.) 5.5 mm Hex L-Key (5 1/8" O'all Lg.) 6 mm Hex L-Key (5 3/4" O'all Lg.) 7 mm Hex L-Key (5 7/8" O'all Lg.) 8 mm Hex L-Key (6 3/8" O'all Lg.) 9 mm Hex L-Key (6 5/8" O'all Lg.) 10 mm Hex L-Key (7 1/8" O'all Lg.)	Steel	Black	Plastic Caddy	000000	000000

Ball-End L-Keys

Hex

When a standard-tip key can't make good contact with the recess, a ball end allows angled entry to turn screws in hard-to-reach places.

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

	Length
Size	Overall	Long Leg	Short Leg	Max. Access Angle	Material	Finish		Each
Hex
4.5 mm	4 11/16"	4 1/2"	1"	25°	Steel	Black	0000000	00000

Ball-End L-Key Sets

With Plastic Caddy

Hex

These assorted keys have a ball end that allows angled entry to make good contact with the screw recess when standard-tip keys can’t. Use to turn screws in hard-to-reach areas.

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

Hex
Number of Pieces	Includes	Max. Access Angle	Material	Finish	Container Type		Each
Long Length
15	1.27 mm Hex L-Key (2 7/8" O'all Lg.) 1.5 mm Hex L-Key (3 1/16" O'all Lg.) 2 mm Hex L-Key (3 3/8" O'all Lg.) 2.5 mm Hex L-Key (3 5/8" O'all Lg.) 3 mm Hex L-Key (4 1/16" O'all Lg.) 3.5 mm Hex L-Key (4 1/8" O'all Lg.) 4 mm Hex L-Key (4 1/2" O'all Lg.) 4.5 mm Hex L-Key (4 11/16" O'all Lg.) 5 mm Hex L-Key (5" O'all Lg.) 5.5 mm Hex L-Key (5 3/16" O'all Lg.) 6 mm Hex L-Key (5 3/4" O'all Lg.) 7 mm Hex L-Key (5 13/16" O'all Lg.) 8 mm Hex L-Key (6 3/8" O'all Lg.) 9 mm Hex L-Key (6 5/8" O'all Lg.) 10 mm Hex L-Key (7 3/16" O'all Lg.)	25°	Steel	Black	Plastic Caddy	0000000	000000

Ball-End High-Visibility L-Key Sets

Gold

Blue

Hex

These assorted keys have a ball end that allows angled entry to turn screws in hard-to-reach areas. The bright finish makes them easy to see and less likely to be misplaced.

Gold-plated keys resist corrosion.

Long Length
Number of Pieces	Includes	Max. Access Angle	Material	Color	Container Type		Each
15	1.27 mm Hex L-Key (2 7/8" O'all Lg.) 1.5 mm Hex L-Key (3 1/16" O'all Lg.) 2 mm Hex L-Key (3 3/8" O'all Lg.) 2.5 mm Hex L-Key (3 5/8" O'all Lg.) 3 mm Hex L-Key (4 1/16" O'all Lg.) 3.5 mm Hex L-Key (4 1/8" O'all Lg.) 4 mm Hex L-Key (4 1/2" O'all Lg.) 4.5 mm Hex L-Key (4 11/16" O'all Lg.) 5 mm Hex L-Key (5" O'all Lg.) 5.5 mm Hex L-Key (5 3/16" O'all Lg.) 6 mm Hex L-Key (5 3/4" O'all Lg.) 7 mm Hex L-Key (5 13/16" O'all Lg.) 8 mm Hex L-Key (6 3/8" O'all Lg.) 9 mm Hex L-Key (6 5/8" O'all Lg.) 10 mm Hex L-Key (7 3/16" O'all Lg.)	25°	Gold-Plated Steel	Gold	Plastic Caddy	0000000	000000
15	1.27 mm Hex L-Key (2 7/8" O'all Lg.) 1.5 mm Hex L-Key (3 1/8" O'all Lg.) 2 mm Hex L-Key (3 3/8" O'all Lg.) 2.5 mm Hex L-Key (3 5/8" O'all Lg.) 3 mm Hex L-Key (4" O'all Lg.) 3.5 mm Hex L-Key (4 1/8" O'all Lg.) 4 mm Hex L-Key (4 1/2" O'all Lg.) 4.5 mm Hex L-Key (4 3/4" O'all Lg.) 5 mm Hex L-Key (4 7/8" O'all Lg.) 5.5 mm Hex L-Key (5 1/8" O'all Lg.) 6 mm Hex L-Key (5 3/4" O'all Lg.) 7 mm Hex L-Key (5 7/8" O'all Lg.) 8 mm Hex L-Key (6 3/8" O'all Lg.) 9 mm Hex L-Key (6 5/8" O'all Lg.) 10 mm Hex L-Key (7 1/8" O'all Lg.)	25°	Painted Steel	Blue	Plastic Caddy	000000	00000

Ball-End Driver Shafts

Hex

Create your own tool by attaching these shafts to a handle, or use with socket wrenches and power tools. They have a ball end that allows angled entry to make good contact with the recess when a standard-tip shaft can’t.

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

Hex
Size	Overall Lg.	Max. Access Angle	Material	Finish		Each
4.5 mm	5 1/2"	25°	Steel	Black	0000000	00000

6-Point Sockets

Standard

Deep

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

			Standard			Deep
Size	Material	Specifications Met	Overall Lg.		Each	Overall Lg.		Each
1/4" Square Drive
4.5 mm	Chrome-Plated Steel	__	__	000000	00	2"	0000000	000000
4.5 mm	Chrome-Plated Steel	ASME B107.110	7/8"	0000000	00000	__	000000	00

12-Point Sockets

Standard

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

		Standard
Size	Material	Overall Lg.		Each
Chrome Plated
1/4" Square Drive
4.5 mm	Steel	7/8"	00000000	00000