Proto Single Flare Nut Wrench, Heavy-Duty Build for Everyday Use, Suited for Garage and Job Site Work, Trusted by Pros and DIY Users, Line Wrench for Brake Lines, Fuel Lines, and Fittings

Proto Single Flare Nut Wrench for Pro Shop Use
✔️ 1 flare nut wrench, steel, built for real work, pro-grade build

This Proto single flare nut wrench grips line fittings on more sides than an open end wrench, so soft nuts don't round off. It's a handy pick for brake line, fuel line, and hydraulic fitting work.

✅ Pack size: 1 flare nut wrench
✅ Brand: Proto
✅ Material: steel
✅ Mfr part number: J3814M
✅ Tough build for shop, garage, and job site use

💡 What is a flare nut wrench used for?
Flare nut wrenches are made for line fittings that round off easy.

• They grip the fitting on more sides than an open end wrench
• The slot lets the wrench slip over brake and fuel lines
• Perfect for soft brass and aluminum fittings