Line Wrenches

Coy Goldsmith
10 min readApr 10, 2024



Get ready to dive into the world of Line Wrenches, as we explore some of the top products available for your convenience. In this roundup article, we’ve carefully selected a variety of Line Wrenches to suit different needs and preferences. Whether you’re a seasoned mechanic or a DIY enthusiast, this article will provide valuable insights to help you make an informed decision. Join us as we uncover the best Line Wrench options on the market, and discover why they’re worth the investment.

The Top 5 Best Line Wrenches

  1. AGS Ratcheting Flare Nut Brake Line Wrench — Compact, Tight Grip — AGS Ratcheting Flare Nut Brake Line Wrench — Effortlessly remove and tighten the toughest hex fittings with one hand and precision in tight spaces.
  2. SK 376 6-Piece Flare Nut Wrench Set for Metric Fasteners — SK 376 6 Piece SuperKrome Metric Flare Nut Wrench Set — Practical and affordable, with 6 different sizes of easy-to-use flare nut wrenches for various fastener needs!
  3. Easy-Grip 17mm Line Wrench for Efficient Fitting Adjustments — The Open Flex Line Wrench is a one-handed ratcheting powerhouse, making quick work of any hex fittings with its uniquely designed shape for easy loosening and tightening.
  4. 13 Piece Line Wrench Set for Automotive Fittings — Safely and securely loosen auto fittings with the 13-piece Lock Technology LTILT1920 Line Wrench Set, designed for precise, non-turning hammering and easy access to hard-to-reach areas.
  5. 16-Piece Metric Shockit Line Wrench Set for Heavy Duty Equipment — Master heavy equipment maintenance with the Lock Technology Shockit Line Wrench Set, providing efficient and precise hydraulic fitting removal using air hammer power and German DIN standards for ultimate success!

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AGS Ratcheting Flare Nut Brake Line Wrench — Compact, Tight Grip

AGS Ratcheting Flare Nut Brake Line Wrench - Compact, Tight Grip | Image

These AGS Ratcheting Flare Nut Brake Line Wrenches have made my life easier when it comes to working on vehicles. The 360-degree contact grip makes short work of any stubborn rounded fittings, and the compact size with the ratcheting function allows me to reach into even the tightest spaces. The hinged neck makes those hard-to-reach areas a breeze to handle.

The one-handed operation for opening and closing the wrench head is a major bonus. They come in six different sizes — 8mm x 9mm, 10mm x 11mm, 12mm x 13mm, 14mm x 15mm, 16mm x 17mm, and 18mm x 19mm — to fit a variety of needs.

Overall, I’m impressed with the performance and durability of these line wrenches.

SK 376 6-Piece Flare Nut Wrench Set for Metric Fasteners

SK 376 6-Piece Flare Nut Wrench Set for Metric Fasteners | Image

As a reviewer who actually tried the SK 376 6 Piece SuperKrome Metric Flare Nut Wrench Set, I can confidently say that this set is a game-changer for anyone dealing with flare nuts in tight spaces. The 16 different sizes of flare nut wrenches it offers make it a versatile tool that can handle most of your fastener needs, and the alloy steel construction ensures durability and strength. One of my favorite features is the 15-degree offset, which provides better access in those hard-to-reach areas.

Additionally, the wrench roll keeps the tools organized and within easy reach. The set may be a bit heavy, but it’s a small price to pay for the quality and range of tools you get. Overall, the SK Professional Tools 376 Flare Nut Wrench Set is an excellent investment for any professional looking for a reliable and practical set of wrenches.

Easy-Grip 17mm Line Wrench for Efficient Fitting Adjustments

Easy-Grip 17mm Line Wrench for Efficient Fitting Adjustments | Image

I’ve been using the Open Flex Line Wrench for a while now, and it’s been a real game-changer in my daily tasks. Its unique shape allows me to easily loosen or tighten even rounded hexes, which is a common problem I’ve faced in the past.

The ratcheting power lets me complete tasks swiftly, and I appreciate not having to use both hands. However, I do wish it had a wider range of sizes available. Overall, it’s a fantastic addition to my toolbox.

13 Piece Line Wrench Set for Automotive Fittings

13 Piece Line Wrench Set for Automotive Fittings | Image

For the past few weeks, I’ve been using the Lock Technology LTILT1920, a 13-piece SAE Shockit Line Wrench Set Automotive, to tackle some tricky tasks around my car. This set has been a game-changer, especially when it comes to those hard-to-reach line nuts. The offset punch feature is an absolute winner, as it makes it easy to get those elusive nuts that other wrenches can’t seem to get to.

One of the biggest advantages of using this wrench set is the interlocking socket design, which ensures the punch stays in place and doesn’t slip while hammering. It also has a compact design, perfect for tight spaces — no more struggling to get a wrench in there.

The set covers a variety of socket sizes, from 1/4 to 3/4 inch, making it versatile and suitable for different automotive and hydraulic line fittings. And the best part? It’s built to precise ISO 1174–2 DIN tolerances, which means it’s a reliable and durable tool for the job.

Of course, no product is perfect. One downside I’ve noticed is that the interlocking socket design might make it a bit more challenging to handle for some users. However, this issue is easily outweighed by the overall convenience and versatility this wrench set provides. So, if you’re in the market for a reliable and feature-packed line wrench set, the Lock Technology LTILT1920 could well be the one for you.

16-Piece Metric Shockit Line Wrench Set for Heavy Duty Equipment

16-Piece Metric Shockit Line Wrench Set for Heavy Duty Equipment | Image

I’ve been using the Lock Technology 16 Piece Metric Shockit Line Wrench Set for weeks now, and let me tell you, it’s a game-changer. The first thing that caught my attention was the air hammer-powered technology, allowing me to remove fittings without any thread galling. It’s incredible how the hypersonic vibration makes even the toughest tasks feel like a breeze.

One of the standout features for me was the compact socket design. It fits into tight spaces where larger wrenches simply can’t. The precision German DIN standards also gave me a sense of confidence and quality while using the set.

However, there were a couple of things I noticed that could be improved. The weight of the set is quite heavy at 3.97 lbs, which can be a bit of a downside when working in more confined spaces. Additionally, the lack of a drop-forged construction might be a concern for some users who prefer that level of durability.

All in all, the Lock Technology Shockit Line Wrench Set has proven to be a reliable and efficient tool in my daily life. Its innovative technology and attention to detail make it a standout product, even with a few minor cons.

Buyer’s Guide

Welcome to our buyer’s guide for line wrenches, designed to help you make an informed decision when choosing the right tool for your needs. Line wrenches are essential for various tasks, from plumbing and automotive to construction and mechanical work. In this guide, we’ll discuss key features, considerations, and general advice to help you find the best line wrench for your projects.


Types of Line Wrenches

There are two main types of line wrenches: combination wrenches and dedicated line wrenches. Combination wrenches are versatile tools that come in various sizes and can be used for a wide range of tasks, including tightening or loosening pipes, bolts, and nuts. Dedicated line wrenches, on the other hand, are designed specifically for line work and may have unique features for improved grip and leverage.


Line wrenches are available in different materials, each with its pros and cons. The most common materials are steel, alloy steel, and chrome-vanadium steel. Steel wrenches are durable but may be susceptible to rust, while alloy steel and chrome-vanadium steel offer better resistance to corrosion. Consider the environment in which you’ll use the wrench and choose the material that best suits your needs.


Size and Comfort

When selecting a line wrench, consider the size of the tool and your comfort while using it. The handle should fit comfortably in your hand, and the overall length should provide enough leverage for your tasks. Look for ergonomic handles that absorb shock and reduce strain during extended use. Additionally, choose a wrench that fits the size of the lines or bolts you’ll be working with to ensure maximum efficiency.

Special Features

Some line wrenches come with additional features that may improve their performance or convenience. These include adjustable handles, magnetic tips for holding small parts, and swivel capabilities for maneuvering in tight spaces. Evaluate these features based on your specific needs and preferences when selecting a line wrench.



What is a Line Wrench?

A Line Wrench is a specialized tool used for wrenching bolts in tight spaces where traditional wrenches cannot reach. It is a combination of a pipe wrench and an adjustable wrench, designed to provide a better grip and greater maneuverability in confined areas. This tool is commonly used in plumbing and HVAC systems to make repairs and replacements.

Line Wrenches are made of high-quality materials, such as cast iron or durable alloys, ensuring the tool withstands frequent use and rough conditions. Different Line Wrench sizes are available to cater to various bolt sizes, making it a useful and versatile addition to any toolbox or repair kit for professionals and DIY enthusiasts alike.


What sets Line Wrenches apart from other wrenches?

Line Wrenches offer a combination of features that set them apart from other wrenches. As mentioned earlier, they are a mix of a pipe wrench and an adjustable wrench, allowing users to have the best of both worlds. While a pipe wrench offers greater grip, an adjustable wrench provides flexibility for various bolt sizes. A Line Wrench combines these benefits and adds versatility to tight spaces wrenching.

Additionally, Line Wrenches are designed with specific features such as a curved handle for better grip and ease of use. Some models feature teeth that are serrated for a secure grip, while others have a smooth surface for softer materials. These design aspects make Line Wrenches more comfortable and efficient for users.

What sizes are available for Line Wrenches?

Line Wrenches are available in a variety of sizes to accommodate different bolt sizes. Common sizes range from 6 to 12 inches, with some models offering adjustable sizes for even greater versatility. It is essential to choose the appropriate size Line Wrench for the specific task at hand, ensuring efficient wrenching in tight spaces without causing damage to the bolts.

Sizes are often indicated by the bolt diameter the Line Wrench can accommodate, so it is necessary to have an understanding of bolt sizes or consult with a specialist to ensure the right Line Wrench is chosen for a particular situation. Manufacturers often provide size charts or catalogs to help customers make the right selection.


How do I maintain my Line Wrench?

Proper maintenance is essential to maintaining the integrity and longevity of your Line Wrench. Here are some recommended steps to clean and care for your Line Wrench after use:

  1. Wipe the tool down with a damp cloth and a mild detergent solution to remove any dirt, grime, or oil. 2) Allow the Line Wrench to air dry completely before storing it away in its storage sleeve or case. Never store a wet Line Wrench to prevent rust and corrosion.

Regularly inspect your Line Wrench for signs of wear and tear, looking for any cracks, bends, or rust. If any damage is present, have the tool repaired or replaced promptly, as compromised tools can be dangerous and ineffective for their intended use. Keeping your Line Wrench in good condition with regular maintenance helps extend its lifespan and ensures it is always ready to use when needed.

Which Line Wrench is best for my needs?

To determine the best Line Wrench for your needs, consider the following factors:

  1. Make sure the wrench can fit the bolt sizes you expect to work with. Most manufacturers offer a range of sizes, and you can often find size charts or consult with a specialist to make an informed decision. 2) Investigate the design and material used in the Line Wrench. High-quality materials will provide durability and superior grip, ensuring a better wrenching experience. 3) If you prefer a versatile Line Wrench, look for models that offer adjustable sizes.

Other features that may be beneficial depend on your specific needs. Consider the size and shape of the handle, the presence of serrated teeth for additional grip, and any other design aspects that seem helpful. Researching and reviewing various Line Wrench models can help you find the best option for your requirements, ensuring an efficient and convenient wrenching experience.

Can I use a Line Wrench for tasks other than plumbing and HVAC systems?

Absolutely! While Line Wrenches are commonly used in plumbing and HVAC systems, they provide versatility and can be applied to a wide range of tasks involving tight spaces and bolt wrenching. This includes automotive and marine applications, electrical systems, and even construction work such as foundation repairs or wall framing.

The unique design and versatility of Line Wrenches make them a valuable addition to any toolbox for professionals in various fields. So, don’t hesitate to explore and use a Line Wrench for tasks outside its traditional applications. With the appropriate Line Wrench size and the right toolbox setup, you can tackle challenging wrenching situations with ease.

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