Professional 3/8" drive 1/2" non-spline torque adaptor with locking hole technology, 710 in-lb capacity, double hex design for restricted access, nickel-chrome finish.
The Snap-on Tools@Height 3/8" Drive 1/2" Non-Spline Torque Adaptor (THFRDH161) is a precision-engineered tool designed for professional mechanics and technicians working in demanding industrial environments. This adaptor features advanced locking hole technology on all four sides, which works in conjunction with a precision pin to significantly reduce the risk of misaligning the socket, adaptor, or extension onto the drive tool. The combination of the locking hole and pin system ensures secure engagement and prevents accidental disengagement during critical torque applications.
Crafted from special alloy steel and heat-treated to exacting standards, this torque adaptor delivers optimum strength and durability for extended tool life and reliable performance. The nickel-chrome finish provides superior corrosion resistance and allows for easy cleaning and maintenance in harsh working conditions. Featuring a double hex (12-point) configuration, this adaptor allows the socket to engage single hex fasteners every 30 degrees rather than every 60 degrees, providing significantly better access in restricted spaces and tight work areas where standard tools cannot reach.
With a working torque capacity of 710 in-lb, this adaptor is suitable for a wide range of fastening applications. The design incorporates radius edges that resist damage and nicks during regular use, and includes center-to-center length markings for easy and accurate torque calculations. The 1/2" size with 3/8" drive compatibility makes it an essential component for professional tool collections in aviation, aerospace, military, defense, oil and gas, power generation, railroads, and general industry applications.
Key Features
- Locking hole on all four sides with precision pin to prevent socket misalignment
- Precision-crafted from special alloy steel with heat treatment for optimum strength
- Double hex (12-point) configuration for better access in restricted areas
- Nickel-chrome finish for corrosion resistance and easy cleaning
- Radius edges design to resist damage and nicks during regular use
- 710 in-lb working torque capacity for reliable performance
- Center-to-center length markings for accurate torque calculations
- Compatible with 3/8" drive tools and 1/2" fasteners
Technical Specifications
| Specification |
Value |
| Product SKU | THFRDH161 |
| Drive Size | 3/8 inch |
| Socket Size | 1/2 inch |
| Head Diameter at Wrench End (Dimension A) | 0.740 inches |
| Head Diameter at Square End (Dimension B) | 0.750 inches |
| Head Depth at Wrench End (Dimension C) | 11/32 inches |
| Head Depth at Square End (Dimension D) | 7/16 inches |
| Center-to-Center Length (Dimension E) | 2 inches |
| Weight | 0.1 lb (0.05 kg) |
| Working Torque Capacity | 710 in-lb |
| Material | Special alloy steel, heat-treated |
| Finish | Nickel-chrome |
| Configuration | Double hex (12-point) |
| Spline Type | Non-spline |
| Brand | Snap-on Tools@Height |
