8-19mm Flare Nut Wrench Mirror Finish Double Head Line Spanner
8-19mm Flare Nut Wrench Mirror Finish Double Head Line Spanner
8-19mm Flare Nut Wrench – Double Head Open Ring Spanner
Tackle fuel lines, brake lines, and other tube fasteners with confidence using this professional-grade Flare Nut Wrench Set. Crafted from high-carbon steel alloy with a fully polished mirror finish, these wrenches deliver maximum durability and a secure grip on even the most stubborn fittings. The open-ring design wraps around line fittings to prevent rounding, while the dual-size heads on each wrench cover a wide range — 8mm through 19mm — so you can work efficiently without swapping tools.
Made in Mainland China.
Key Features
- Material: High-carbon steel alloy for superior strength and longevity
- Mirror Finish: Fully polished surface resists corrosion and is easy to clean
- Dual-Size Heads: Each wrench covers two sizes, saving space in your toolbox
- Size Range: 8mm to 19mm — ideal for most automotive line fittings
- Open-Ring Design: Slides over tubes and lines for a secure, non-slip fit on fittings
- Color: Silver (as pictured)
- Versatile Use: Perfect for brake lines, fuel lines, and other tube-connected fasteners on cars, trucks, and more
What's in the Box
- 1 × Flare Nut Wrench (Double Head, 8–19mm)
Why Choose This Wrench?
Whether you're a professional mechanic or a dedicated DIY enthusiast, having the right tool for line fittings is essential. Unlike standard open-end wrenches, the flare nut (crow's foot) design grips around more of the fitting's surface, dramatically reducing the chance of rounding off soft metal nuts. The space-saving dual-head configuration means fewer tools, less clutter, and more efficiency on every job.
Looking for more workshop essentials? Check out our Multi-Use Faucet Bubbler Wrenches – 6 Sizes for plumbing jobs, or our Silicone Sealant Scraper Set for finishing and renovation work. You may also find our High-Grade Silicone Grease Lubricant handy for keeping fittings and O-rings in top condition.
Learn more: FuelEconomy.gov driving efficiency guidance
Frequently Asked Questions
Q: What sizes does this flare nut wrench cover?
A: This double-head open ring spanner covers sizes from 8mm to 19mm. Each wrench features two different size heads to maximize coverage and minimize the number of tools you need to carry.
Q: What is a flare nut wrench used for in automotive repair?
A: A flare nut wrench (also called a crow's foot or line wrench) is specifically designed for use on tube fittings, such as brake lines and fuel lines. Its open-ring design wraps around more of the fitting than a standard open-end wrench, reducing the risk of slipping or rounding the soft metal nuts typically found on automotive lines.
Q: Is this wrench suitable for professional automotive use?
A: Yes. Made from high-carbon steel alloy with a mirror-polished finish, this wrench is built to withstand the demands of professional garage use as well as home DIY automotive projects. The durable construction ensures long-lasting performance across a wide range of vehicle repair tasks.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.