
Craftsman 105-Piece Mechanics Tool Set 8 inch
Score: 85/100
Craftsman 256-Piece Mechanics Tool Set with 2-Drawer Tool Box
Score: 82/100
$99.00
Rankings

The Craftsman CMMT12123L is a 105-piece mechanics tool set featuring 1/4-inch and 3/8-inch drive sockets, ratchets, and bits in both SAE and Metric sizes. It is designed for DIYers and automotive enthusiasts, offering low-profile ratchets with a 5-degree arc swing and a durable chrome finish housed in a portable blow-molded case. While noted as a perfect addition for semi-pros, editors caution that it is not intended for heavy professional use due to its limited drive sizes.

The Craftsman CMMT45256 is a robust 256-piece mechanics tool set designed for automotive repair and general DIY tasks, featuring a complete range of SAE and metric tools. Its main trade-off is the reliance on a plastic case which may be less durable than metal alternatives. It is ideal for users seeking a portable, all-in-one kit with extensive bit and socket variety.
| Attribute | ![]() | ![]() |
|---|---|---|
105 | 256best | |
72 teethbest | 72 teethbest | |
| ↓ lower better | 13.8 lbsbest | 22.48 lbs |
— | 18.54 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Set Composition(1) | ||
Total Piece Count | 105 | 256 |
Build & Durability(2) | ||
Tool Material | Chrome Steel | Chrome Vanadium Steel |
Surface Finish | Full polished chrome | Polished Chrome |
Compatibility & Sizing(4) | ||
Drive Size | 1/4 and 3/8 inch | 1/4, 3/8, 1/2 |
Measurement System | SAE and Metric | SAE/Metric |
Socket Type | 6-point | Shallow, Deep |
Socket Points | 6-point | 6-Point, 12-Point |
Portability & Storage(2) | ||
Case Type | Blow-molded hard plastic | Blow-Molded |
Set Weight (lbs) | 13.8 lbs | 22.48 lbs |
Value & Support(1) | ||
Warranty Period (years) | Lifetime years | Standard years |
Application & Standards(1) | ||
Intended Use | DIY and Automotive | DIY/General Repair |

Products in the top-left offer the best value (high score, low price).

Professional reviewers and editors highlight the Craftsman CMMT12123L as a valuable starter set for automotive enthusiasts and DIYers. They praise its superior ratchet access in tight spaces, organized storage, and ASME compliance. While noted as a perfect addition for semi-pros, editors caution that it is not intended for heavy professional use due to its limited drive sizes.
Everyday consumers generally praise the ratchet performance in tight spots and the versatility of the socket variety for cars and lawn equipment. The lifetime warranty is a significant positive factor. However, recurring complaints focus on the limited drive sizes (no 1/2-inch) and the lack of wrenches, with some users noting it falls short for heavy professional tasks.

“well-made”

“range to cover it all”




Manufacturer and retailer descriptions emphasize ratchet improvements for better access and ASME compliance, positioning the set as ideal for mechanics needing a complete, organized kit.
No consumer reviews or ratings are included in the search results, so common praise or complaints regarding value or durability cannot be cited. A YouTube unboxing provides an overview but contains no user opinions.