Professional Snap-on 1/2" drive spline torque adaptor with 2,800 in-lb capacity, chrome finish, and military-spec compliance for aerospace and defense applications.
The Snap-on 1/2" Drive SAE #22 Spline Torque Adaptor (Model SRES22) is a precision-engineered tool specifically designed for servicing high-tensile strength spline nuts and bolts commonly used in military and commercial aircraft applications. This professional-grade adaptor features advanced spline wrenching technology that engages fastener teeth over a wider contact area, significantly reducing stress concentration and enabling the safe application of high torque loads up to 2,800 in-lbs without risking damage to either the fastener or the tool itself.
Manufactured to exacting military specifications including MS-33787 and MIL-W-89823, this chrome-finished torque adaptor combines durability with precision performance. The unique spline wrenching configuration provides superior performance on spline fasteners while maintaining compatibility with conventional six and 12-point fasteners, delivering advantages comparable to Snap-on's renowned Flank Drive® wrenching system. With a 11/16" hex size and center-to-center length of 3 inches, this adaptor integrates seamlessly into professional tool collections for aerospace, military, and heavy-duty industrial applications.
The SRES22 represents the pinnacle of Snap-on's commitment to quality and reliability in specialized fastening solutions. Its robust construction and precision-engineered spline teeth ensure consistent, accurate torque application while minimizing the risk of fastener stripping or tool slippage. This adaptor is an essential addition to any professional technician's toolkit, particularly for those working in aviation, aerospace, defense, and high-performance industrial environments where precision and reliability are non-negotiable.
Key Features
- Precision-engineered spline wrenching technology for high-tensile strength fasteners
- Maximum working torque capacity of 2,800 in-lbs for demanding applications
- Military specification compliance with MS-33787 and MIL-W-89823
- Chrome finish for enhanced durability and corrosion resistance
- Compatible with spline, six-point, and 12-point fasteners
- Wider tooth engagement area minimizes stress and fastener damage
- Professional-grade construction for aerospace and defense industries
- Flank Drive® equivalent performance on conventional fasteners
Technical Specifications
| Specification |
Value |
| Model Number | SRES22 |
| Drive Size | 1/2 inch |
| Spline Size (SAE) | #22 (11/16 inch) |
| Hex Size | 11/16 inch |
| Maximum Recommended Working Torque | 2,800 in-lbs |
| Length (Center to Center) | 3 inches |
| Head Diameter (Spline and Square) | 0.989 to 1.04 inches |
| Head Depth (Spline and Square) | 0.5 to 0.5 inches |
| Finish | Chrome |
| Military Specifications | MS-33787, MIL-W-89823 |
| Application | Aerospace, Military, Commercial Aircraft, Industrial |
| Fastener Compatibility | Spline, 6-point, and 12-point fasteners |
