Professional 9-10mm dual-size ratcheting box wrench with 12-point spline design for high-tensile fasteners, military-grade chrome finish, and versatile fastener engagement
The Snap-on 9-10mm 12-Point Metric 0° Offset Ratcheting Box Wrench (Model RBM910C) is a professional-grade precision tool engineered for demanding applications in aviation, aerospace, military, defense, and industrial maintenance. This dual-size ratcheting wrench features specialized spline wrenching technology that has been specifically developed to service high-tensile strength spline nuts and bolts with exceptional reliability and performance.
The wrench utilizes precise radial spline teeth that engage fastener teeth over a wider surface area, effectively minimizing stress concentration and enabling the application of high torque while reducing the risk of damage to both the fastener and the tool itself. The 12-point design provides enhanced versatility and accessibility in confined spaces, making it ideal for complex mechanical assemblies and precision work. With different sizes at each end (9mm and 10mm), this tool offers exceptional versatility for technicians working with multiple fastener sizes.
Constructed from chrome-plated steel, this wrench complies with Military Specification MS-33787 and MIL-W-8982, ensuring superior rust resistance and durability in harsh environments. The tool can also be effectively used on ordinary 6 and 12-point fasteners, providing an advantage similar to the renowned Snap-on Flank Drive wrenching system. With its 139.7mm length and precisely engineered head dimensions, this professional tool is built to withstand the rigorous demands of aerospace maintenance, military applications, and heavy-duty industrial use.
Key Features
- Dual-size design (9mm and 10mm) for versatile fastener engagement
- 12-point spline wrenching technology for high-tensile strength fasteners
- Precise radial spline teeth minimize stress and enable high torque application
- Military-grade chrome finish complies with MS-33787 and MIL-W-8982 specifications
- Compatible with ordinary 6 and 12-point fasteners similar to Flank Drive system
Technical Specifications
| Specification |
Value |
| Model Number | RBM910C |
| Size Range | 9-10 mm |
| Point Style | 12-Point |
| Offset Angle | 0° |
| Overall Length | 139.7 mm |
| Head Depth | 9.5 mm |
| Outside Diameter | 20.2-22.6 mm |
| Material | Chrome-plated Steel |
| Finish | Chrome |
| Military Compliance | MS-33787 and MIL-W-8982 |
| Fastener Compatibility | Spline nuts/bolts, 6-point and 12-point fasteners |
| Handle Type | Standard Handle |
