Professional-grade 3/8" drive torque adaptor with locking hole design, 190 in-lb capacity, double hex configuration for restricted spaces, and corrosion-resistant nickel-chrome finish.
The Tools@Height 3/8" Drive 5/16" Non-Spline Torque Adaptor (Model THFRDH101) is a precision-engineered tool designed for professional mechanics and technicians requiring reliable torque transmission in confined spaces. This adaptor features Snap-on's innovative locking hole design on all four sides, which significantly reduces the risk of socket misalignment during operation. The combination of the locking hole and pin mechanism ensures secure engagement between the socket, adaptor, and drive tool, providing enhanced safety and accuracy in torque applications.
Crafted from special alloy steel and heat-treated for maximum strength and durability, this torque adaptor delivers a working torque capacity of 190 in-lb, making it suitable for medium-duty applications across various industries. The nickel-chrome finish provides superior corrosion resistance and allows for easy cleaning and maintenance. The double hex (12-point) configuration enables the socket to engage single hex fasteners every 30° instead of 60°, offering exceptional access in restricted work areas where traditional tools cannot reach.
With a center-to-center length of 2 inches and weighing only 0.07 pounds, this compact adaptor is ideal for aviation, aerospace, automotive, and general industrial applications. The radius edge design prevents damage and nicks during use, while the precision construction ensures consistent performance. This non-spline torque adaptor is an essential component for professional tool collections and meets the exacting standards of Snap-on quality.
Key Features
- Locking hole on all four sides reduces socket misalignment risk
- 190 in-lb working torque capacity for medium-duty applications
- Double hex (12-point) configuration for 30° engagement in restricted areas
- Special alloy steel with heat treatment for maximum strength and durability
- Nickel-chrome finish provides corrosion resistance and easy cleaning
- Radius edge design prevents damage and nicks
- Center-to-center length measurement for accurate torque calculations
- Lightweight at 0.07 lb for improved tool handling
Technical Specifications
| Specification |
Value |
| Product SKU | THFRDH101 |
| Drive Size | 3/8 inch |
| Adaptor Size | 5/16 inch |
| Type | Non-Spline Torque Adaptor |
| Working Torque | 190 in-lb |
| Dimension A (Head Diameter, Wrench End) | 0.475 inches |
| Dimension B (Head Diameter, Square End) | 0.750 inches |
| Dimension C (Head Depth, Wrench End) | 1/4 inch |
| Dimension D (Head Depth, Square End) | 7/16 inch |
| Dimension E (Center-to-Center Length) | 2 inches |
| Weight | 0.07 lb (0.03 kg) |
| Material | Special alloy steel |
| Heat Treatment | Heat-treated for optimum strength |
| Finish | Nickel-chrome |
| Configuration | Double hex (12-point) |
| Feature | Locking hole on all four sides |
| Engagement Angle | 30 degrees with 12-point configuration |
| Brand | Snap-on Tools |
| Series | Tools@Height |
| Warranty | Snap-on Lifetime Warranty |
