Professional 18-20mm metric offset box wrench with Flank Drive® technology delivering 15-20% more turning power, ideal for confined spaces with 10° offset and superior corrosion-resistant nickel-chrome finish.
The Snap-on 18-20mm 12-Point Metric Flank Drive Short 10° Offset Box Wrench (Model XSM1820A) is a professional-grade hand tool designed for precision fastening applications in automotive, industrial, and aerospace environments. This premium wrench features Snap-on's proprietary Flank Drive® wrenching system, which delivers up to 15-20% more turning power compared to conventional wrenches while significantly reducing the risk of tool slippage and fastener damage. The short handle design with 10° offset provides maximum knuckle clearance, allowing technicians to access fasteners in confined spaces and tight working areas with ease.
Crafted with exceptional durability in mind, this wrench features tough nickel-chrome plating that produces a mirror-like finish, protecting against corrosion and oxidation while maintaining a professional appearance. The 12-point box end design ensures versatile compatibility with a wide range of fastener types and sizes, making it an essential addition to any professional tool collection. The wrench is sized for optimum comfort and balance in your hand, reducing fatigue during extended use and improving overall work efficiency.
This tool meets ASME® B107.100 standards for quality and performance, ensuring reliability and consistency in demanding professional environments. Whether you're working on aircraft engines, industrial machinery, or precision automotive components, this Flank Drive® offset box wrench delivers the performance, durability, and access you need to complete jobs efficiently and safely.
Key Features
- Flank Drive® wrenching system provides up to 15-20% more turning power with reduced tool and fastener damage risk
- 10° offset handle design maximizes knuckle clearance for superior access in tight and confined spaces
- Tough nickel-chrome plating with mirror-like finish protects against corrosion and enables easy cleaning
- 12-point box end design offers versatile compatibility with various fastener types and sizes
- Sized for optimum comfort and balance reducing hand fatigue during extended professional use
- ASME® B107.100 certified for quality and reliability in demanding industrial and aerospace applications
- Professional-grade construction suitable for automotive, industrial, and aerospace maintenance
Technical Specifications
| Specification |
Value |
| Model Number | XSM1820A |
| Size Range | 18-20 mm |
| Point Style | 12-Point |
| Offset Angle | 10° |
| Handle Type | Short Handle |
| Overall Length | 194 mm |
| Outside Diameter | 25.9-28.6 mm |
| Head Depth | 11.9-12.8 mm |
| Finish | Chrome (Nickel-Chrome Plating) |
| Wrenching System | Flank Drive® |
| Performance Advantage | 15-20% more turning power |
| Standards Compliance | ASME® B107.100 |
| Application | Metric fasteners in automotive, industrial, and aerospace |
| Corrosion Resistance | Mirror-like nickel-chrome finish |
| Ergonomics | Optimized comfort and balance design |
