4.5 mm Screwdrivers | 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
Drive 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 Phosphate Coated	Plastic	0000000	00000

Bit Screwdrivers

With Ultra Grip

Phillips

Slotted

Pozidriv®

Square

Torx

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

Ultra-grip drivers have a multicomponent handle that provides comfort and the best possible grip for achieving maximum torque. These drivers come with double sided bits.

			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	Phillips: No. 0, No.1, No. 2, No. 3 Pozidriv: No. 1, No. 2 Slotted: 3mm, 4mm, 4.5mm, 5.5 mm, 6mm, 6.5mm Square: No. 0, No. 1, No. 2, No. 3 Torx: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30	9"	3 1/2"	3/8"	Steel	Steel	Plastic	Ultra Grip	Pop-up bit storage inside tool	0000000	000000

Nutdrivers

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

			Shaft
Drive Size	Overall Lg.	Bolt Clearance	Lg.	O'all Wd.	Material	Handle Material	Grip Style		Each
External Hex
4.5 mm	6 5/8"	3"	3"	5/16"	Black-Oxide Steel	Plastic	Plain	0000000	000000

Precise-Control Screwdriver Sets

Hex

Phillips

Torx

Slotted

External Hex

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

Torx

External Hex

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-cm.		Each
50	Phillips Screwdrivers: No. 000, No. 00, No. 0, No. 1 Slotted Screwdrivers: 0.031", 0.039", 0.047", 0.059", 0.079", 0.098", 0.118", 0.138", 0.157" Hex Screwdrivers (Inch): 1/16", 3/32", 7/64", 1/8" Hex Screwdrivers (Metric): 0.7 mm, 0.9 mm, 1.3 mm, 1.5 mm, 2 mm, 2.5 mm, 3 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
Drive 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 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/sq.	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 Oxide	Plastic	10⁹-10¹¹	Plastic Pouch	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
Drive Size	Bolt Clearance	Overall Lg.	Lg.	O'all Wd.	Material	Finish	Handle Material	Surface Resistivity, ohms/sq.		Each
External Hex
4.5 mm	1/2"	6 1/4"	2 1/2"	9/32"	Steel	Black Oxide	Plastic	10⁹-10¹¹	00000000	000000

L-Keys

Standard Tip

Hex

Turn fasteners from either end and reach into tight spots.

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

	Length
Drive Size	Overall	Long Leg	Short Leg	Material		Each
Standard Tip
Hex
4.5 mm	3 1/16"	2 7/8"	1"	Black-Oxide Steel	0000000	00000
4.5 mm	4 1/2"	4 5/16"	1"	Black-Oxide Steel	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 Phosphate Coated	Plastic Caddy	000000	000000

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 Phosphate Coated	Plastic Caddy	0000000	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
Drive 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 Phosphate Coated	0000000	00000

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.

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

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

Bolt-Through 6-Point Socket Sets

Pair the sockets in these sets with the bolt-through ratchet wrench to reach nuts at the bottom of a long threaded rod or bolt. 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
No. of Pieces	Components Included	Includes	For Max. Bolt Dia.		Each
27	23 Sockets 1 Drive Tool 2 Extensions 1 Adapter	Inch Sockets: 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 3/8", 7/16", 1/2", 9/16" Metric Sockets: 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm 6 1/2" Long Ratchet Wrench 3" Long Extension 6" Long Extension Adapter for 1/4" Square Drive Sockets	1/4"	000000000	0000000
46	39 Sockets 2 Drive Tools 2 Extensions 3 Adapters	1/4" Drive Inch Sockets: 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 3/8", 7/16", 1/2" 1/4" Drive Metric Sockets: 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm 3/8" Drive Inch Sockets: 3/8”, 7/16”, 1/2”, 9/16”, 5/8”, 11/16”, 3/4” 3/8” Drive Metric Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm 6 1/2" Long Ratchet Wrench 8" Long Ratchet Wrench 3" Long 1/4" Square Drive Extension 3" Long 3/8" Square Drive Extension Adapter for 1/4" Square Drive Sockets Adapter for 3/8" Square Drive Sockets Adapter for 1/2" Square Drive Sockets	3/8"	000000000	000000

Economy 12-Point Socket Sets

Suitable for occasional maintenance work, these sets are imported. The 12-point shape quickly positions on hex fasteners.

Sockets—Chrome-Plated Steel

1/4" Square Drive
No. of Pieces	Includes		Each
14	Deep Sockets: 4 mm, 4.5 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	00000000	000000

Sockets with Drive Tools—Chrome-Plated Steel

1/4" Square Drive
No. of Pieces	Components Included	Includes		Each
56	50 Sockets 2 Drive Tools 2 Extensions 2 Adapters	Standard Sockets (Inch): 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2", 9/16" Standard Sockets (Metric): 4 mm, 4.5 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 Deep Sockets (Inch): 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2", 9/16" Deep Sockets (Metric): 4 mm, 4.5 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 6" Long Ratchet Wrench 6 1/2" Long Socket Screwdriver Handle 3" Long Extension 6" Long Extension 1 5/8" Long Flex Adapter 1/4" Female Square Drive × 1/4" Female Hex Adapter	00000000	000000

6-Point Sockets

Standard

Deep

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

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

		Standard			Deep
Drive Size	Material	Overall Lg.		Each	Overall Lg.		Each
Metric
1/4" Square Drive
4.5 mm	Chrome-Plated Steel	7/8"	0000000	00000	2"	0000000	000000

12-Point Sockets

Standard

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

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

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