Professional Snap-on 1/2" drive spline torque adaptor with 2,000 in-lb capacity, chrome finish, military specification compliant for aircraft maintenance and high-torque fastening applications
The Snap-on 1/2" Drive SAE #20, 5/8" Hex Spline Torque Adaptor (Model SRES20) is a professional-grade tool specifically engineered for servicing high-tensile strength spline nuts and bolts commonly found on military and commercial aircraft. This chrome-finished adaptor features precise radial spline teeth that engage fastener teeth over a wider contact area, significantly minimizing stress concentration and enabling the application of high torque loads while reducing the risk of damage to both the fastener and the tool itself.
Compliant with Military Specification MS-33787 and MIL-W-89823, this torque adaptor delivers a maximum recommended working torque of 2,000 in-lbs, making it ideal for demanding aerospace and military applications. The unique spline wrenching configuration provides exceptional versatility, as it can also be effectively used on ordinary six and 12-point fasteners, offering advantages similar to the renowned Snap-on Flank Drive wrenching system. With a center-to-center length of 3 inches and a 5/8" hex size, this tool is designed for precision work in professional maintenance and repair environments.
The SRES20 represents the pinnacle of Snap-on quality and engineering, featuring durable chrome plating that resists corrosion and wear. This professional tool is essential for aviation technicians, military maintenance personnel, and industrial professionals who demand reliability and precision in their fastening operations.
Key Features
- Precise radial spline teeth engage fasteners over wider area to minimize stress
- Maximum working torque of 2,000 in-lbs for high-tension applications
- Military specification compliant (MS-33787 and MIL-W-89823)
- Chrome finish provides corrosion resistance and durability
- Versatile design works on 6-point, 12-point, and spline fasteners
- Professional-grade tool for aerospace and military applications
- Center-to-center length of 3 inches with 5/8" hex size
- Reduces risk of fastener and tool damage during high-torque operations
Technical Specifications
| Specification |
Value |
| Model Number | SRES20 |
| Drive Size | 1/2 inch |
| SAE Spline Size | #20 (5/8 inch) |
| Hex Size | 5/8 inch |
| Maximum Recommended Working Torque | 2,000 in-lbs |
| Length (Center to Center) | 3 inches |
| Head Diameter (Spline and Square) | 0.900 - 1.04 inches |
| Head Depth (Spline and Square) | 0.5 - 0.5 inches |
| Finish | Chrome |
| Military Specification Compliance | MS-33787 and MIL-W-89823 |
| Application | Aircraft, military, commercial fastening |
| Fastener Compatibility | Spline, 6-point, and 12-point fasteners |
