This 425-piece mega fractional master set from Wright Tool is a full SAE arsenal spanning four drive sizes: 1/4", 3/8", 1/2", and 3/4". At roughly 227 pounds, it anchors a shop that wants every fractional size within reach in one place instead of reaching across several smaller kits. Every socket, ratchet, extension, and accessory is forged and machined in the USA for exact fit and long working life.
The set is built on Wright's patented Wright Drive, which spreads load across more of each fastener's surface for stronger torque transfer and less rounding, while WrightGrip 2.0 bites into worn or damaged fasteners that standard tools slip off. It meets ASME B107 series standards and is backed by Wright's limited lifetime warranty.
That four-drive spread covers fine assembly at 1/4" drive through heavy fasteners at 3/4" drive — a fit for heavy-equipment shops, fleet maintenance departments, and industrial MRO teams working primarily in SAE. It ships as tools only; pair it with a size-matched 52" Wright top chest or roller cabinet for a complete rolling workstation.
| Piece Count | 425 |
| Drive Sizes | 1/4", 3/8", 1/2", 3/4" |
| Socket Type | Fractional (SAE) |
| Weight | 227 lbs |
| Dimensions | 40" L × 40" W × 13" H |
| Standards | ASME B107 series |
| Country of Origin | USA |
| UPC | 076799001023 |