
Craftsman 135-Piece Mechanics Tool Set 8 inch
Score: 88/100
Craftsman 256-Piece Mechanics Tool Set with 2-Drawer Tool Box
Score: 82/100
$99.00
Rankings

The Craftsman CMMT12124 is a 135-piece mechanics tool set featuring low-profile 72-tooth ratchets with a 5° arc swing and thinner heads for improved access in tight spaces. It includes a comprehensive assortment of SAE and metric sockets, wrenches, and drive tools housed in a durable blow-molded case with a full lifetime warranty. It is highlighted as reliable for basic maintenance to complex repairs, with the low-profile design and chrome finish standing out for professional-grade feel.

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 | ![]() | ![]() |
|---|---|---|
135 | 256best | |
72 teethbest | 72 teethbest | |
| ↓ lower better | 9.8 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 | 135 | 256 |
Build & Durability(2) | ||
Tool Material | Alloy Steel | Chrome Vanadium Steel |
Surface Finish | Full polished chrome | Polished Chrome |
Compatibility & Sizing(4) | ||
Drive Size | 1/4, 3/8, and 1/2 inch | 1/4, 3/8, 1/2 |
Measurement System | SAE and Metric | SAE/Metric |
Socket Type | 6-point and 12-point | Shallow, Deep |
Socket Points | 6-point and 12-point | 6-Point, 12-Point |
Portability & Storage(2) | ||
Case Type | Blow-molded hard plastic | Blow-Molded |
Set Weight (lbs) | 9.80 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 sources praise the set's high quality, durability, and versatility, noting the wide variety of tools, smooth ratchet operation, and sturdy case for organization. It is highlighted as reliable for basic maintenance to complex repairs, with the low-profile design and chrome finish standing out for professional-grade feel.
Consumers commonly praise the wide tool variety covering SAE/metric sizes, smooth and comfortable ratchets, durability for everyday projects, and organized case. Recurring complaints are minimal in sources, but some note the case's bulkiness; overall, it's seen as indispensable for DIYers.



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.
