Flare Nut Wrench

Flare Nut Wrench: Line Wrenches for Brake Lines, Fuel Lines & Hydraulic Fittings

A flare nut wrench, also known as a line wrench, is designed to grip and turn hex fittings used on brake lines, fuel lines, air conditioning lines, and hydraulic tubing. Unlike standard open-end wrenches, flare nut wrenches provide more contact around the nut to help reduce slipping and rounding—making them suitable for automotive, mechanical, refrigeration, and plumbing applications. This collection includes individual flare nut wrenches and wrench sets suitable for servicing tubing connections and fittings that require controlled torque and improved grip.

Available Flare Nut Wrench Products

• Metric Flare Nut Wrenches – Common sizes for automotive and mechanical fittings
• SAE Flare Nut Wrenches – Inch-based sizes for compatible applications
• Double-Ended Flare Nut Wrenches – Two-size configurations for versatility
• Flare Nut Wrench Sets – Multi-piece sets covering a range of common sizes
• Line Wrenches for Tubing Fittings – Designed for brake, fuel, and hydraulic line service

Flare Nut Wrench Applications

• Automotive brake line maintenance and repair
• Fuel line and hydraulic line servicing
• Air conditioning and refrigeration line work
• Plumbing and tubing installation tasks
• Mechanical maintenance involving hex flare fittings
• Workshop and garage repair operations

Key Product Highlights

• Improved Nut Contact – Designed to grip more sides of the fitting compared to standard open-end wrenches
• Helps Reduce Slippage – Suitable for working with softer tubing nuts (proper technique required)
• Multiple Size Options – Available in metric and SAE configurations depending on listing
• Workshop & Garage Ready – Practical tool for mechanics, technicians, and maintenance teams
• Set & Individual Options – Choose single sizes or full wrench sets based on your needs

Why Buy from KHM Megatools?

• Price Match Program – Competitive pricing on hand tools and workshop essentials
• Same-Day Delivery within Metro Manila – Available for eligible items and confirmed orders
• Nationwide Delivery (Philippines) – Ship tools to workshops and project locations nationwide
• Trusted Supplier for Professional Use – Serving mechanics, technicians, contractors, and maintenance teams
• Clear Size Listings – Review wrench size, type, and inclusions before checkout

Frequently Asked Questions (FAQs)

Q: What is a flare nut wrench used for?
A: A flare nut wrench is used for loosening and tightening hex fittings on brake lines, fuel lines, hydraulic tubing, and similar applications where a stronger grip than a standard open-end wrench is preferred.

Q: What is the difference between a flare nut wrench and an open-end wrench?
A: A flare nut wrench wraps around more sides of the nut, providing better contact and helping reduce the risk of rounding compared to a standard open-end wrench.

Q: Are flare nut wrenches available in metric and SAE sizes?
A: Yes. Availability depends on the specific product listing. Some models are metric, some are SAE (inch), and some are available in sets covering multiple sizes.

Q: Can I use a flare nut wrench on brake lines?
A: Yes. Flare nut wrenches are commonly used for brake line fittings and other tubing connections where additional grip is helpful.

Q: Do flare nut wrenches come with a warranty?
A: Warranty varies by product. Please check the product page first. If warranty information is not stated, refer to our warranty policy for guidance. Learn more about Warranty Policy »