Professional 3/8" drive crowfoot wrench with Flank Drive® technology delivering 15-20% more turning power. Features 6-point design, nickel-chrome finish, and thin wall construction for superior access and corrosion resistance.
The Tools@Height 3/8" Drive 6-Point 7/16" Flank Drive® Flare Nut Crowfoot Wrench (Model THFRH140S) is a professional-grade precision tool designed for demanding applications in aviation, aerospace, automotive, and industrial sectors. This crowfoot wrench features the innovative Flank Drive® system that grips fastener flats and delivers up to 15-20% more turning power compared to conventional designs, making it ideal for working with power steering lines, expansion valves, A/C lines, hydraulic lines, and fuel filter lines.
Constructed from the highest quality proprietary steel, this wrench delivers optimum strength and durability for demanding work environments. The 6-point box end configuration provides superior holding power and reduces the risk of fastener rounding. The nickel-chrome alloy finish provides excellent corrosion and rust resistance, ensuring long-term performance in harsh conditions. With locking holes on all sides rather than just one, this tool reduces the risk of misalignment and ensures consistent, reliable performance.
The thin wall design allows for better access around obstacles and tight spaces, making it an essential tool for maintenance and repair work on complex equipment. With a maximum recommended working torque of 200 in-lb, this 7/16" wrench is engineered to handle professional-grade applications while maintaining precision and safety. The compact dimensions and lightweight construction (0.07 lb) make it easy to carry and maneuver in confined spaces.
Key Features
- Flank Drive® system provides up to 15-20% more turning power than conventional designs
- 6-point box end configuration reduces fastener rounding and ensures superior holding power
- Locking holes on all sides minimize misalignment risk and ensure consistent performance
- Thin wall design enables better access around obstacles and tight spaces
- Nickel-chrome alloy finish resists rust and corrosion for long-term durability
- Manufactured from premium proprietary steel for optimum strength and reliability
- Ideal for power steering lines, expansion valves, A/C lines, hydraulic lines, and fuel filters
- Maximum recommended working torque of 200 in-lb for professional-grade applications
Technical Specifications
| Specification |
Value |
| Drive Size | 3/8 inch |
| Wrench Size | 7/16 inch |
| Point Configuration | 6-Point |
| Outside Diameter (Dimension A) | 29/32 inch |
| Wall Opening (Dimension B) | 5/16 inch |
| Center to Center (Dimension C) | 9/16 inch |
| Length (Dimension D) | 1-13/32 inch |
| Head Depth (Dimension E) | 3/8 inch |
| Weight | 0.07 lb (0.03 kg) |
| Maximum Recommended Working Torque | 200 in-lb |
| Material | Premium proprietary steel with nickel-chrome alloy finish |
| Design Type | Flank Drive® Flare Nut Crowfoot Wrench |
| Application | Power steering lines, expansion valves, A/C lines, hydraulic lines, industrial equipment, fuel filter lines |
| Finish | Nickel-chrome alloy |
| Model Number | THFRH140S |
