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CRAFTSMAN

CRAFTSMAN Mechanics Tool Set, 298 Piece Hand Tool and Socket Set SAE/Metric (CMMT12139)

  • Based on 360 reviews
Condition: New
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$349.00 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Jun 29
Order within 12 hours and 14 minutes
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Style: NEW 298 Piece Set


Features

  • LOW PROFILE RATCHET: Up to 25% thinner head* for access in tight spaces (1/4" DR & 3/8" DR only as compared to CMMT81747, CMMT81748, & CMMT81749)
  • 72-TOOTH RATCHET: Delivers 5 degree arc swing
  • ORGANIZATION: Tools packed into plastic trays for organization and storage
  • ALL IN ONE MECHANICS SET: Contains a full assortment of sockets, ratchets, wrenches, and specialty bits for automotive enthusiasts and mechanics
  • CORROSION RESISTANCE: Full Polish Chrome Finish
  • FULL LIFETIME WARRANTY

Description

This all-in-one 298 pc. Mechanics Tool Set comes equipped with 1/4-in., 3/8-in., and 1/2-in. drive improved low profile 72-Tooth ratchets with a 5° arc swing and up to a 25% thinner head that helps deliver greater access in confined spaces. Packed with a comprehensive assortment of 6-point and 12-point sockets, ratcheting wrenches, and drive tool accessories, this set is perfect for automotive and DIY repairs or as a complete starter set. Tools come assembled in plastic trays for easy organization. Proudly backed by a Full Lifetime Warranty. 1/4” DR and 3/8” DR Only As Compared To CMMT81747, CMMT81748, & CMMT81749

Manufacturer: ‎CRAFTSMAN


Part Number: ‎CMMT12139


Item Weight: ‎43.7 pounds


Product Dimensions: ‎30 x 12 x 10 inches


Country of Origin: ‎China


Item model number: ‎CMMT12139


Style: ‎NEW 298 Piece Set


Power Source: ‎hand_powered


Item Package Quantity: ‎1


Included Components: ‎(44) Hex keys, (29) Accessories, (166) Sockets, (3) Ratchets, (23) Wrenches, (33) Specialty bits


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Full Lifetime Warranty


Date First Available: March 18, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 29

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Good set
Style: 298 Piece Set
Good quality set. I think it's a little overpriced but its quality.
Reviewed in the United States on May 7, 2025 by Brad H.
    • Perfect All-in-One Tool Set!
Style: NEW 298 Piece Set
This CRAFTSMAN 298-piece set is a must-have! Durable, well-organized, and great value with both SAE/Metric sizes. Highly recommended for DIYers and pros alike.
Reviewed in the United States on April 25, 2025 by Leila Arambula
    • Husband happy
Style: 298 Piece Set
It included everything that my husband needed to work on. Pretty much everything. He's a wonderful gift
Reviewed in the United States on January 1, 2025 by Vicky B.
    • Good tools
Style: 298 Piece Set
Got these for my son that's in college for diesel mechanics and they work very well.
Reviewed in the United States on November 18, 2024 by PNW Mom
    • Great tool set.
Style: 298 Piece Set
Great starter set for aspiring mechanics. Bought for my son to work on his jeep. Craftsman tools have worked well for me for decades. Are they sn*p on or m*tco? No. But they don’t require a second mortgage to buy them. And they are far better than the cheap sets at the discount store.
Reviewed in the United States on November 6, 2023 by Mr. Guest
    • Close enough
Style: 298 Piece Set
Review Image by Kennaldo Kennaldo
Review Image by Kennaldo Kennaldo
Review Image by Kennaldo Kennaldo
Review Image by Kennaldo Kennaldo
Review Image by Kennaldo Kennaldo
It would be nice if the sellers would include pics like this. Kinda takes all the mystery out of what’s actually included when Craftsman can’t even get right what’s in the box. In order to get a clear picture of what’s included I put the sockets into trays I got at HF, my preferred method of socket organization. See the pics for what I’m talking about. Note that Craftsman’s answer to ‘are there any 12 point sockets?’ is incorrect. All the 1/4 and 3/8” drive sockets are 6 point and all the 1/2” drive sockets are 12 point. *SAE sockets; 1/4” drive, they skipped the 7/32 deep for some reason. They did include 5/32 shallow and deep, which don’t have a spot in the tray and are to the right. 3/8” drive, they decided to not include the 15/16 or 1” deep sockets. 1/2” drive, no sockets larger than the 3/8” drive and a poor showing of deep sockets. *Metric sockets; 1/4” drive, full set. 3/8” drive, full set and includes a 21 and 22 shallow but no deep. 1/2” drive, paltry showing of deep sockets. *Wrenches, for some reason they skipped the 13/16”. Note that craftsman's web site and their answers to questions here about included wrenches are incorrect. In the end I’ll keep it but I will have to fill in some they didn’t include. ... show more
Reviewed in the United States on December 6, 2020 by Kennaldo Kennaldo
    • Need to sell it in an organized toolbox
Style: 298 Piece Set
Review Image by ec4u2see ec4u2see
Review Image by ec4u2see ec4u2see
So I got my set today, I really like the whole set up it has everything you might need for some repairs, what I did not like is that it came in this cheap plastic molding that won’t last very long, and honestly I thought it would come in an organized tool box with drawers like some of the other sets, so now I have to buy a toolbox to set this into and I really wish that it would have come with it , anyways mixed thoughts whether to keep or send back just because of that ... show more
Reviewed in the United States on October 9, 2020 by ec4u2see ec4u2see
    • Love it
Style: 298 Piece Set
If you're looking to get into tech work or just need a good set for around the house, look no further. This set contains an amazing amount of value. Good quality tools, decent plastic trays for organization and if you misplace or damage anything it's nothing a quick trip to Lowe's won't resolve!
Reviewed in the United States on September 25, 2022 by Kyle Dovel

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