Professional-grade 1/4" drive 3/8" SAE torque adaptor with double hex design for superior access in restricted spaces. Precision-forged and heat-treated for maximum durability and accuracy.
The Snap-on 1/4" Drive 3/8" SAE Torque Adaptor (Model TRDHL121) is a precision-engineered tool designed for professional mechanics and technicians requiring accurate torque applications in confined spaces. Manufactured from special alloy steel, this adaptor combines durability with precision forging and heat treatment to ensure optimal strength and reliability in demanding industrial applications. The double hex (12-point) design allows the socket to engage single hex fasteners every 30 degrees rather than every 60 degrees, providing superior access in restricted working areas where traditional tools cannot fit.
This torque adaptor features center-to-center length markings for easy torque calculations, eliminating guesswork and ensuring consistent, accurate results. The precision-crafted radius edges resist damage and nicks during regular use, maintaining tool integrity over extended service life. With a drive size of 1/4 inches and a 3/8 inch SAE size, this adaptor is ideal for aviation, aerospace, automotive, and general industrial maintenance applications where precision torque control is critical.
Snap-on's commitment to quality is evident in every aspect of this tool's construction. The TRDHL121 represents professional-grade equipment that meets the exacting standards of skilled technicians and maintenance professionals worldwide. Whether used in aviation maintenance, fleet servicing, or precision mechanical work, this torque adaptor delivers the reliability and accuracy that professionals demand.
Key Features
- Manufactured from special alloy steel for superior strength and durability
- Precision forged and heat-treated for optimum performance and longevity
- Double hex (12-point) design allows socket engagement every 30 degrees for better access in restricted areas
- Center-to-center length markings enable easy and accurate torque calculations
- Radius edges resist damage and nicks during regular use and maintenance
Technical Specifications
| Specification |
Value |
| Model Number | TRDHL121 |
| Drive Size | 1/4 inch |
| SAE Size | 3/8 inch |
| Dimension A | 37/64 inches (14.68 mm) |
| Dimension B | 15/32 inches (11.91 mm) |
| Dimension C | 17/64 inches (6.75 mm) |
| Dimension D | 17/64 inches (6.75 mm) |
| Dimension E (Center-to-Center Length) | 2 inches (50.8 mm) |
| Material | Special alloy steel |
| Design Type | Double hex (12-point) |
| Manufacturing Process | Precision forged and heat-treated |
| Edge Design | Radius edges for damage resistance |
| List Price | $34.00 |
| Application | Aviation, aerospace, automotive, and general industry |
