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SUNEX TOOLS 3351, 3/8 Inch Drive Impact Socket Set, 51-Piece, Metric, 7mm - 22mm, Standard/Deep/ Universal, Cr-Mo Steel, Radius Corner Design, Heavy Duty Storage Case, Meets ANSI Standards

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Mar 19
Order within 11 hours and 4 minutes
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Style: Socket Set


Pattern Name: Socket Set


Features

  • LIFETIME WARRANTY WITH SUNEXPRESS: Get in the express lane with the industrys leading warranty program and exchange warranted products directly with Sunex.
  • CR-MO STEEL: Provides the strength and flexibility to handle high torque impact tools.
  • RADIUS CORNER DESIGN: Reduces wear and increases torque on fasteners by placing force on fastener walls rather than fastener corners.
  • CHAMFERED OPENING: Quickly aligns fastener to socket.
  • DUAL SIZE MARKINGS: Laser etched and roll stamped markings to ensure permanent socket identification.
  • HEAVY DUTY STORAGE CASE: Convenient impact socket transport and storage.
  • MEETS ANSI STANDARDS: All sockets are rigorously tested, ensuring peak performance and durability.
  • 51 PIECE SET; METRIC: 7mm to 22mm; Includes 1/4 BIT HOLDER SOCKET
  • 3 IMPACT EXTENSION: Provides access to recessed fasteners.
  • UNIVERSAL JOINT: Adapts any socket for use in swivel applications.

Description

The Sunex 3351 3/8” Drive Impact Socket Set includes metric sizes from 7mm to 22mm in standard, deep, and universal lengths. This set includes a universal joint, a 3” impact extension, and a ¼” bit holder socket. Each socket has been forged from high grade Cr-Mo steel, designed with radius corners, made with chamfered openings, and marked by both laser etching and roll stamping to ensure permanent socket identification. All of this ensures our sockets’ professional-level performance--conveniently stored in one heavy duty storage case. Meets ANSI Standards.

Brand: Sunex Tools


Item Length: 0.87 Inches


Material: Alloy Steel


Finish Type: Metal


Number of Pieces: 51


Brand: ‎Sunex Tools


Item Length: ‎0.87 Inches


Material: ‎Alloy Steel


Finish Type: ‎Metal


Number of Pieces: ‎51


Drive System: ‎External Hex


Drive Bit Shank Style: ‎Hex


UPC: ‎784497296817 634746280060 613364131060


Global Trade Identification Number: ‎60


Bit Compatibilities: ‎3/8 " drive, 1/4 " hex shank adapter


Manufacturer: ‎Sunex Tools


Part Number: ‎SUN3351


Item Weight: ‎11.25 pounds


Item model number: ‎SUN3351


Is Discontinued By Manufacturer: ‎No


Size: ‎3/8″


Color: ‎Black


Style: ‎Socket Set


Finish: ‎Metal


Pattern: ‎Socket Set


Item Package Quantity: ‎1


Number of Handles: ‎1


Compatible Fastener Range: ‎0.375 inches


Included Components: ‎Sockets and blow molded case


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Manufacturer Warranty


Date First Available: December 10, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great Master Metric Set
Size: 3/8″
This set has been amazing for working on my car. Fits extremely well to all heads, very well organized, and great value for an entire set of metric 3/8" sockets. Having both a universal 3/8" swivel head as well as a set of sized socket swivel heads has been super clutch on some buried screws. I'll probably never need to use their warranty since I'm not using them everyday, but for an enthusiast they have held up well (no fading of numbers yet). ... show more
Reviewed in the United States on July 11, 2023 by Ray

  • New Tools to Kick The Repair The Old Car Blues!:)
Size: 3/8″
Very Very Nice!!!!! Yes and finally a brand of impact socket that is affordable. At a time where SEARS/CRAFTSMAN is steadily depleting their "LIFETIME" inventory or mechanics and other tool types it's nice to other brands follow on providing quality mechanics tools at a reasonable. I did some research prior to purchase and read, viewed numerous YOUTUBE video vlogs from numerous satisfied DIYers and professional mechanics and all sang the praises of the SUNEX brand of mechanic impact sockets. I chose an all metric set as my car is a Japanese import where everything is metric. I love mechanics work, I love working on my car when I can find the time and the money to do so. One plus to being able to work on your car is having quality reliable tools for the job. I recently replaced my radiator and thermostat in an effort to get my idled out of commission car back on the road. Well my cars up running I now have a bad front wheel bearing and these sockets will be put to good use along side some specifically purchased tool items for the job. All I need now is some time off and maybe an extra set of capable hands though I doubt an extra hand part will happen, I feel confident my new cordless Milwaukee cordless M18 3/8 impact wrench 2754 (with 5.0 ah battle) and 3/8 impact ratchet will make my work ahead a joy to complete. ... show more
Reviewed in the United States on August 18, 2017 by LEGIN27 LEGIN27

  • Great Set for the Home DIYer
Size: 3/8″
I'm a home DIYer that works on a lot of cars for family, friends, & neighbors. This set is perfect for a DIYer or new automotive tech that's just starting out. The sockets have the size stamped & painted on them which is nice to have compared to other cheap sockets that only have the size painted on them & not stamped because the paint will wear off over time & you won't know what size the socket is. The swivels are so much better than the cheap ones from Harbor Freight. I expect these to last far longer than the ones that Harbor Freight sells. ... show more
Reviewed in the United States on June 18, 2024 by Mike W.

  • The wobble sockets are the highlight to an already great product.
Size: 3/8″
After reading the reviews for this product, and digging through forums, I knew this would be a great product. It didn't disappoint in the least. The wobble sockets come in a large array of sizes which was a huge plus. One of the very little downsides to the product is that the size of the sockets are hard to read. other than that? beautiful product all the way around. If you want tool truck quality, without having to spend tool truck money, get this set. Well worth the money!!! ... show more
Reviewed in the United States on March 14, 2022 by Sebastian

  • Great set but don't buy used
Size: 3/8″
Of no fault by Sunex Tools but by 3rd party Amazon seller "Flow Dealz" with seller ID: A2GP4414DQTJ29 Great tool set but missing 8 pieces, case was dirty/cracked, didn't close properly, and arrived messy as pictured. Seller trying to pass off liquidation items as sell-able hoping that someone would keep it. ... show more
Reviewed in the United States on October 7, 2024 by T C T C

  • Customer Service
Size: 3/8″
Love the socket set !! BUT Ithe best is I had one on the socket cracked and I text Sunex and sent photos NO return TEXT NO CALL !! The next thing I received was a NEW SOCKET!!! OUTSTANDING CUSTOMER SERVICE!!!!
Reviewed in the United States on January 18, 2026 by Amazon Customer

  • 3351 Set
Size: 3/8″
Great impacts for a fair price. I first got a small set to try out for lug nuts and was very impressed. After destroying a few adapters and loosing torque, I bit the bullet and bought this set (3351). I'm just a diyer that works on my truck and my wife's car so these don't get abused like a mechanic would but growing up around high quality tools (back when things were made to last) I can say these are up to par. I saw the other comments from mechanics and of course did a ridiculous amount of research into this and the other brands your are probably considering. I advise you to get these, remember pay one cry once. There's nothing worse than cheaping out on your tools and having it fail when you need it. Also, tools are an investment, spend the money up front, and they will last you a lifetime. Probably even your kids lifetime. ... show more
Reviewed in the United States on September 8, 2021 by Sagdaddy

  • Quick delivery
Size: 3/8″
Happy with the set, except for the swivel sockets they gave me 2 3/8" 16mm swivel sockets so I'm missing the 15mm. Other than that set it great.
Reviewed in the United States on October 1, 2022 by Ortega Family

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