Professional 5/16-3/8" 12-point SAE double flex ratcheting box wrench with 180° flexibility, Flank Drive® system for superior grip, and Dual 80® Technology for minimal swing arc in tight spaces.
The Snap-on XFR1012 5/16–3/8" 12-Point SAE Flank Drive® Double Flex Ratcheting Box Wrench represents the pinnacle of professional-grade fastening tools designed for demanding industrial applications. This innovative ratcheting box wrench combines a 180° flexible ratcheting head with a narrow width and low-height profile, enabling access into the tightest of spaces where standard wrenches cannot reach. The wrench features a unique, patented ratcheting gear design that is optimized to maximize ratcheting arc, strength, durability, and access, making it the most balanced wrench available in its class.
Constructed with premium nickel-chrome finish, this wrench provides excellent corrosion resistance and maintains a clean appearance even in harsh working environments. The Yoke/tang combination utilizes well-established Snap-on® flex ratchet design principles for ultimate strength and durability, ensuring reliable performance across countless applications. The 72-tooth ratcheting gear (5/16") and 80-tooth ratcheting gear (3/8") incorporate key elements of Snap-on® Dual 80® Technology, which significantly minimizes swing arc when working in restricted spaces, allowing technicians to work more efficiently.
The Flank Drive® box-end system represents a significant advancement in fastener engagement technology, gripping fastener flats to deliver up to 15–20% more turning power with substantially less risk of fastener damage. This makes the XFR1012 an ideal choice for precision work where fastener integrity is paramount. Whether used in aviation, aerospace, military, defense, oil and gas, power generation, railroad, or general industry applications, this professional-grade tool delivers consistent, reliable performance that meets the exacting standards of skilled technicians and maintenance professionals worldwide.
Key Features
- 180° flexible ratcheting head for access into tightest spaces
- Narrow width and low-height profile design for restricted space applications
- Patented ratcheting gear design optimized for maximum arc, strength and durability
- Flank Drive® box-end system delivers 15-20% more turning power with less fastener damage
- Dual 80® Technology with 72-tooth (5/16") and 80-tooth (3/8") gears minimizes swing arc
- Nickel-chrome finish provides corrosion resistance and easy cleaning
- Yoke/tang combination utilizes proven Snap-on® flex ratchet design
- 12-point SAE configuration for versatile fastener engagement
Technical Specifications
| Specification |
Value |
| Product SKU | XFR1012 |
| Size Range | 5/16 inch to 3/8 inch |
| Point Configuration | 12-Point |
| Drive System | SAE Flank Drive® |
| Ratcheting Type | Double Flex with 180° Flexibility |
| Dimension A (Outside Diameter) | 21/32 inches |
| Dimension B (Outside Diameter) | 3/4 inch |
| Dimension C (Head Depth) | 1/4 inch |
| Dimension D (Head Depth) | 9/32 inch |
| Overall Length | 13 inches |
| Finish | Nickel-Chrome |
| Ratcheting Gears | 72-tooth (5/16") and 80-tooth (3/8") |
| Technology | Snap-on® Dual 80® Technology |
| Material Construction | Yoke/Tang Steel Construction |
| Turning Power Advantage | 15-20% more turning power than standard wrenches |
| List Price | $100.50 |
| Availability | In Stock |
| Application | Professional Grade - Aviation, Aerospace, Military, Defense, Oil & Gas, Power Generation, Railroads, General Industry |
