Professional Snap-on 3/8" drive flare nut deep wrench with 12-point Flank Drive® design, tethering system for safety at height, and chrome finish for corrosion resistance.
The Snap-on Tools@Height 3/8" Drive 12-Point 7/8" Flank Drive® Flare Nut Deep Wrench in chrome finish is a professional-grade tool designed for aviation, aerospace, military, defense, and industrial applications. This specialized wrench features the proven Flank Drive® wrenching configuration that delivers superior engagement and reduced fastener damage compared to traditional designs. The tool is engineered with a unique tethering system that allows each tool to be secured with its own lanyard, minimizing tool exchanges and significantly reducing the risk of drops from heights—a critical safety feature for work-at-height environments.
Constructed from special alloy steel and precision heat-treated for optimum strength and durability, this wrench delivers consistent performance under demanding conditions. The nickel-chrome plating provides excellent corrosion resistance and allows for easy cleaning and maintenance. The 12-point head configuration provides multiple engagement angles for improved accessibility in confined spaces. With a maximum recommended working torque of 625 in-lb, this tool is engineered to handle professional-grade fastening and unfastening tasks with reliability and precision.
The wrench is sized for optimum comfort and balance, reducing operator fatigue during extended use. The engineered attachment points for the tethering system don't interfere with the functionality or ergonomics of the tool. This is an essential tool for professionals working in aviation maintenance, aerospace assembly, military operations, oil and gas, power generation, railroads, and general industrial applications where safety, reliability, and precision are paramount.
Key Features
- Snap-on Tools@Height tethering system with individual lanyard attachment for each tool to minimize drops and exchanges
- 12-Point Flank Drive® wrenching configuration for superior fastener engagement and reduced damage
- Special alloy steel construction with precision heat treatment for maximum strength and durability
- Nickel-chrome plating for excellent corrosion resistance and easy maintenance
- Maximum recommended working torque of 625 in-lb for professional-grade fastening applications
- Engineered attachment points that don't interfere with tool functionality or ergonomics
- Optimized sizing for comfort and balance to reduce operator fatigue
- Deep socket design for access to recessed fasteners in tight spaces
Technical Specifications
| Specification |
Value |
| Brand | Snap-on |
| Product Line | Tools@Height |
| SKU | THAN850814 |
| Drive Size | 3/8 inch |
| Wrench Size | 7/8 inch |
| Point Configuration | 12-Point |
| Wrench Type | Flare Nut Deep Wrench |
| Flank Drive Design | Yes - Flank Drive® |
| Material | Special Alloy Steel |
| Finish | Nickel-Chrome Plating |
| Heat Treatment | Precision Heat Treated |
| Weight | 0.15 lb (0.07 kg) |
| Outside Diameter (Dimension A) | 1-5/16 inches |
| Wall Opening (Dimension B) | 25/32 inches |
| Center to Center (Dimension C) | 15/16 inches |
| Head Depth (Dimension E) | 25/32 inches |
| Maximum Recommended Working Torque | 625 in-lb |
| Tethering System | Individual Lanyard Attachment |
| Corrosion Resistance | Nickel-Chrome Plated |
| List Price | $66.50 |
