GMTOOLS GM-49PCS 3/8-Inch Drive 49-Piece Impact Socket Set

GMTOOLS GM-49PCS is a 3/8-inch-drive, 49-piece impact socket set with SAE and metric deep and standard sockets, plus extensions and adapters. Its listed size range and included accessories make it a broad option for automotive work and general mechanical maintenance, while the single supplied customer rating offers little feedback to judge longer-term satisfaction.

At a glance

Includes deep and standard 6-point sockets in SAE and metric sizes, covering common fastener sizes from 5/16" to 3/4" and 8 to 22mm with some metric sizes omitted.
The listed kit adds two extension bars, a universal joint and adapters to the sockets.
The listing describes a blow-molded case with labelled positions and permanently laser-etched socket size markings.
The listing claims Cr-V steel construction and a black phosphate finish. These material and durability claims are not independent test results.

Price

$47.99Save 20%

Reference price: ~~$59.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

SAE and metric deep and standard sockets give buyers multiple socket types and measurement systems in one 49-piece set.
The 3" and 6" extensions and universal joint can help reach fasteners with limited access.
The listing claims labelled case positions and high-contrast size markings, which may help with identification and organization.

Technical specifications

16 specifications

Identity
Brand	GMTOOLS
Model	GM-49PCS

Materials and protection
Material listed	Metal
Socket material claimed	chrome vanadium (Cr-V) steel
Finish	Black Phosphate Coating

Set and drive
Piece count	49
Drive size	3/8"
Drive system	Square

Socket sizes and included components
SAE sizes	5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"
Metric sizes	8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22mm
Socket types	deep and standard
Extensions	3" and 6" extension bars
Other accessories	3/8" universal joint; 1/2" to 3/8" adapter; and 3/8" inch socket adapter

Compatibility and dimensions
Listed compatible tools	impact driver, ratchet, wrench
Listed application	automotive
Item length	6 inches

What to know before buying

Listing details to confirm

The item length is listed as 6 inches, but it is not clear which component that measurement describes. Confirm the dimension if it matters to your storage or setup. The listing also claims CR-V steel and ANSI performance compliance, while the general material field says only Metal. Treat the detailed material and standards statements as unconfirmed listing claims.

Who is it for?

A good fit for

Automotive DIYers looking for a 3/8-inch-drive set with both SAE and metric deep and standard sockets.
Home mechanics who may benefit from the included extensions, universal joint and adapters for varied access.

Less suited to

Buyers who need every size in the 8–22mm metric range, since 20mm is absent from the listed sizes.
Buyers who need independently verified material composition or standards compliance.

GMTOOLS GM-49PCS 3/8-Inch Drive 49-Piece Impact Socket Set · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 1 ratings

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The available aggregate shows a five-star rating, but it comes from just one rating. That is too small a sample to establish a broader pattern or identify specific strengths and concerns. Buyers should weigh this limited feedback alongside the listed SAE and metric sizes, accessories and unconfirmed material claims.

Frequently asked questions

What socket sizes are listed?

The listing gives eight SAE sizes from 5/16" to 3/4" and metric sizes from 8mm to 22mm, excluding 20mm.

What accessories are listed in the 49-piece set?

The listed contents include 3" and 6" extension bars, a 3/8" universal joint, a 1/2" to 3/8" adapter and a 3/8" inch socket adapter.

Does the set include a ratchet?

A ratchet is named as a compatible tool, but it is not listed among the kit contents. The supplied component list does not identify a ratchet as included.

What material is the set made from?

The general material field says Metal. A separate feature claim describes drop-forged, heat-treated chrome vanadium steel. The exact material specification is therefore not consistently stated.