Professional 5/16–11/32" 12-point SAE ratcheting box wrench with 0° offset, chrome finish, and precision spline teeth for high-torque fastening applications. Military-spec compliant tool for aerospace, defense, and industrial use.
The Snap-on® 5/16–11/32" 12-Point SAE 0° Offset Ratcheting Box Wrench (Model R1011C) is a professional-grade hand tool engineered for precision fastening applications in high-demand environments. This dual-size wrench features spline wrenching technology specifically developed to service high-tensile strength spline nuts and bolts, making it an indispensable tool for aviation, aerospace, military, defense, oil and gas, power generation, railroad, and general industry applications.
The wrench incorporates precise radial spline teeth that engage fastener teeth over a wider area, minimizing stress concentration and enabling the application of high torque while reducing the risk of damage to both the fastener and the tool. With different sizes at each end (5/16" and 11/32"), this versatile tool provides maximum functionality in a single implement. The chrome finish ensures superior rust resistance and complies with Military Specification MS-33787 and MIL-W-8982 standards, guaranteeing durability and reliability in demanding industrial settings.
Beyond its specialized spline wrenching capabilities, this 12-point ratcheting box wrench can also be effectively used on ordinary 6 and 12-point fasteners, providing an advantage similar to the Snap-on® Flank Drive® wrenching system. The 0° offset design ensures optimal reach and access in tight spaces, while the ratcheting mechanism allows for quick and efficient fastener engagement and disengagement. This tool is essential for professionals who demand precision, durability, and versatility in their hand tool collection.
Key Features
- Dual-size design with 5/16" and 11/32" ends for maximum versatility
- Precision radial spline teeth minimize stress and enable high-torque application
- 12-point design for superior fastener engagement and reduced slippage
- 0° offset configuration for optimal reach in tight spaces and confined areas
- Chrome finish with Military Spec MS-33787 and MIL-W-8982 compliance for durability
- Compatible with 6 and 12-point fasteners with Flank Drive® system advantage
- Ratcheting mechanism for quick and efficient fastener engagement
- Professional-grade tool for aerospace, military, and industrial applications
Technical Specifications
| Specification |
Value |
| Model Number | R1011C |
| Size Range | 5/16–11/32 inches |
| Point Configuration | 12-Point |
| Offset Angle | 0 degrees |
| Outside Diameter (Dimension A) | 5/8–3/4 inches |
| Head Depth (Dimension C) | 11/32 inch |
| Overall Length (Dimension E) | 5-3/8 inches |
| Finish | Chrome |
| Tool Style | SAE Ratcheting Box Wrench |
| Military Specifications | MS-33787, MIL-W-8982 |
| Fastener Compatibility | 6-point, 12-point, and spline fasteners |
| Brand | Snap-on® |
