No. 1 Drive Sockets | McMaster-Carr

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Hex	Phillips	Pozidriv®

Slotted	Square	Torx

	System of Measurement System of Measurement

Inch

Metric

	Square Drive Size Square Drive Size

1/4"

3/8"

	Socket Style Socket Style

	Bit

	Size Size	Show

No. 1

	Size Size	Hide

	Overall Length Overall Length

	Socket Type Socket Type

	Socket

	Tip Style Tip Style

	Standard

	Number of Pieces Number of Pieces

	Individual/Set Individual/Set

Individual

Set

	Drive Type Drive Type

Manual

	Container Type Container Type

	Plastic Case

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Material Material

Steel

	Finish Finish

Chrome Plated

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Bit Replaceable Bit Replaceable

Yes

	Specifications Met Specifications Met

6 Products

Phillips Bit Sockets

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

Sockets						Replacement Bits
Size	Overall Lg.	Material	Bit Replaceable		Each		Each
1/4" Square Drive
No. 1	1 1/16"	Chrome-Plated Steel	No	00000000	000000	000000	00
3/8" Square Drive
No. 1	1 13/16"	Chrome-Plated Steel	Yes	00000000	00000	00000000	00000

Square Bit Sockets

These sockets are also known as Robertson bits.

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

1/4" Square Drive
Size	Overall Lg.	Material	Bit Replaceable		Each
No. 1	1 1/2"	Chrome-Plated Steel	No	0000000	00000

Pozidriv® Bit Sockets

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

3/8" Square Drive
Size	Overall Lg.	Material	Bit Replaceable	Specifications Met		Each
No. 1	2 3/16"	Chrome-Plated Steel	No	ISO 1174, ISO 8764-1	00000000	000000

Hex, Torx, Phillips, and Slotted Bit Socket Assortments


	Hex	Slotted
	Phillips	Torx

1/4", 3/8" Square Drive
No. of Pieces	Includes	Overall Lg.	Material		Each
32	3/8" Hex Sockets (Inch): 1/8", 9/64", 5/32", 3/16", 7/32", 1/4" (1 7/8" O'all Lg.); 5/16", 3/8" (2" O'all Lg.) 3/8" Hex Sockets (Metric): 4 mm, 5 mm, 6 mm, 7 mm (1 7/8" O'all Lg.); 8 mm, 9 mm, 10 mm (2" O'all Lg.) 1/4" Torx Sockets: T10, T15, T20, T25, T27, T30 (1 7/16" O'all Lg.) 3/8" Torx Sockets: T40, T45, T47, T50 (2" O'all Lg.) 3/8" Phillips Sockets: No. 1, No. 2, No. 3 (1 7/8" O'all Lg.) 3/8" Slotted Sockets: 3/16" (1" O'all Lg.); 1/4", 5/16" (1 7/8" O'all Lg.); 3/8" (1" O'all Lg.)	1"-2"	Chrome-Plated Steel	0000000	000000