How To Use A Basin Wrench? Updated 2022

Basin Wrench

If you want to remove, install, or tighten a kitchen or bathroom sink faucet, the basin wrench is a crucial component of your toolkit. It can also help you with water supply lines attached to the faucet. Once you learn how to use a basin wrench, it will become an essential tool in your plumbing toolkit once you learn how to use it.

This article will explain the benefits of having a basin wrench in your toolkit as well as how to use it when repairing a faucet. Keep reading!

Other Posts You Might Like: How To Tool Leather?

What Is A Basin Wrench?

A basin wrench is a specialized plumbing tool with a long handle and a rotating, self-adjusting gripping head. It is used to tighten and remove the mounting nuts on faucet tailpieces. Because of its design, the tool can be used in confined spaces where other tools can’t.

Parts Of A Basin Wrench

The purpose of a basin wrench is to reach up into that awkward, difficult-to-reach area behind a sink and tighten or loosen the mounting nuts on a faucet or the flexible supply tube nuts that connect to the ends of the faucet tailpieces. These nuts are so difficult to reach that some plumbers prefer to attach the faucet to the sink before setting the sink into place. Where this isn’t possible, however, the basin wrench enables you to easily tighten or loosen the mounting nuts by allowing you to reach up behind the sink from below.

The tool has a long shaft and a small, spring-loaded claw head that tightens onto the nut as you turn the shaft. To set it up for loosening or tightening nuts, the head could be rotated 180 degrees in either direction. A sliding T-bar at the shaft’s lower end acts as leverage when the shaft is being turned.

A basin wrench’s applications are constrained because it is only intended for use on faucet mounting nuts. But every homeowner will occasionally need to replace a faucet, and when that happens, a basin wrench will turn out to be the best $10 or $20 you ever spent.

Basin Wrench

Uses Of A Basin Wrench

Installing or removing kitchen and bathroom sink faucets requires the use of a basin wrench. Its long shaft makes it ideal for reaching up into the narrow space beneath the sink to loosen or tighten mounting nuts that are challenging to access with other tools like standard wrenches or pliers.

The claw head on the basin wrench, which can grasp onto the mounting nuts, is its key feature. Depending on whether you want to tighten or loosen the nuts, the head can be set to rotate both clockwise and counterclockwise.

1. Set up the wrench

Make sure the wrench is set up for the appropriate action (loosening or tightening) before using it. Prior to going under the sink, you should complete this. Hold the wrench upright with the head facing up at first.

The claw’s opening ought to be facing right if you’re attempting to remove a faucet. You’ll be rotating the wrench counterclockwise when you attach it to the nut (the following step).

On the other hand, the basin wrench claw head will be facing the left and you will be turning the wrench clockwise if you are installing a new faucet or tightening up an existing one.

2. Turn the wrench

Use both hands to turn the wrench using the T-bar (the little bar parallel to the shaft that is located at the bottom of the wrench). As opposed to trying to turn the shaft, this will give you more leverage. To position, the T-bar where there is more space, slide it to the opposite side of the shaft.

It can be challenging to remove the nut, particularly if it is old and corroded. Spraying some penetration oil may help to slightly loosen it if it’s really stuck.

It may take some practice to successfully loosen or tighten the mounting nut on a faucet with a basin wrench. However, once you master it, it can be a very helpful tool for your home plumbing projects.

3. Fit the wrench on the mounting nut

You then find yourself in a confined and uncomfortable space underneath the sink at this point. The mounting nut is surrounded by the basin wrench, which you should position there. The claw head ought to be firmly holding onto the nut’s notches. When you want to be in a more comfortable position with the most leverage, you can move the claw at any time.

How To Use A Basin Wrench?

Set Up The Basin Wrench

You must first correctly set up the wrench. The wrench is composed of two parts: black and silver. The black portion is the wrench, and the silver portion is the handle. You can reach difficult-to-reach areas thanks to the wrench claw’s ability to swivel around the handle and be positioned at a variety of angles.

To assemble them, position the claw-shaped head so that it straddles the nut and then lowers it over the top of the bolt. Prior to using the wrench, double-check that it is in the proper position.

The claw’s opening should be facing right if you’re trying to remove a faucet. You’ll be turning the wrench counterclockwise once you’ve fastened it to the nut. On the other hand, the basin wrench claw head will be facing the left and you’ll be turning the wrench clockwise if you’re tightening or installing a new faucet.

In order to tighten or loosen the nut, position the claw head so that it is perpendicular to the shaft and facing the proper direction. By doing this, you can tell if the wrench is in the right place when it grips the nut when you turn it in the right direction and releases when you turn it in the wrong direction.

Apply Lubricant To Mounting Nut

If the bolt is stuck, it’s possible that rusty water or mineral deposits have amassed near the threads. Applying a tiny amount of lubricant to the nut before turning on the wrench will aid in the process of loosening things up. You can manage the frozen or corroded bolt by first spraying it with penetrating oil.

The threads of the mounting bolt are best coated with oil using a spray can with an extension straw. Before loosening the nut, give the oil a few minutes to absorb.

Fit The Wrench On The Mounting Nut

The majority of basin wrenches have a right-handed thread, which denotes that they should be turned in a clockwise direction. The arrow on the handle of the wrench should point in the direction of the faucet when you position it over the nut. Position the basin wrench around the mounting nut by lowering it to the sink’s base.

The claw head should be firmly holding onto the nut’s notches. Additionally, you can move the claw at any time to position yourself for maximum leverage in a more comfortable position.

Check The Position Of The Mounting Nut

You must be aware of the nut’s location before beginning to tighten or loosen it. Has it already been loosened? If so, doing so might help you save time, but if the mounting nut is already loose, you shouldn’t keep turning the wrench in that direction. This will only lead to more issues.

Verify that the claw of your wrench has grasped the faucet’s nut once it is in the desired position. The position is correct if the claw easily latches onto the faucet nut. If the claw appears to slip or slide off, however, something may be wrong. Be extremely cautious if a plastic nut is present. Make sure you don’t strip the metal if it’s still a stubborn nut.

Loosen Or Tighten The Kitchen Faucet

Once your wrench is in place, try turning it to see if the claw has actually caught the faucet’s nut. If you’re tensing up, move up and away from the sink while turning to the right. Push down and turn left while moving in a loosening motion toward the sink.

To make the claw’s ridged jaws grip the nut’s notches or edges, wrap the head of the wrench around the faucet mounting nut. Turn the shaft and the kitchen faucet nut with the T bar on the basin wrench. It might take some gentle prodding to get a tough nut loose. To help loosen it up a little in this situation, try spraying penetration oil. When removing stubborn nuts from a T bar, increase your leverage by using a pipe or the back end of an adjustable wrench.


If the basin wrench’s claws are unable to secure the nut, mechanical leverage should be used. To fit at least two of your knuckles behind the basin wrench handle, turn its handle 180 degrees. Put some muscle into pulling up on the T bar as you lean back. This should increase the force sufficiently for you to easily loosen the nut.

It’s time to add a little more muscle if you notice that your basin wrench is getting stuck on rusted nuts. A pipe wrench will be necessary. At the joint or close by, take hold of the wrench’s head and fasten it to the threaded shaft. Then, while maintaining the wrench handle firmly seated on the pipe, turn it. That nut will easily come off thanks to you.

Read More: How To Use A Balloon Tier?

Tips For Using A Basin Wrench

There are some plumbing tasks that can really be that simple if you have the right tools. Here is a quick guide to troubleshooting some common problems in case you run into problems despite using a reliable basin wrench.

  • You can purchase a telescopic basin wrench, which offers the long reach you require from the telescoping shaft if the basin wrench head is unable to reach the mounting nut.
  • Use a pipe, the back of a crescent wrench, or another tool with a claw head to apply more force to the turning motion if a mounting nut is barely moving.
  • Keep in mind that there are various kinds of basin wrenches: adjustable basin wrench, fixed basin tap wrench, fixed basin wrench, and other variations.
  • Be careful when removing the faucet mounting nuts or faucet tailpieces because the basin wrench’s long shaft provides excellent leverage, even when used with just one hand. Plastic nuts are susceptible to corrosion and aging, and if you’re not careful, they can easily break.
  • However, accessing them can occasionally be difficult (which is where the basin wrench head’s ability to be reversible comes in handy!). Penetrating oil can be used for stubborn nuts in the sink basin.)

Basin Wrench Vs. Channel-lock Pliers

Many DIYers find themselves reaching for long-handled channel-lock pliers (also known as channel-type pliers or slip-joint pliers) when tightening or untightening the mounting screws on faucet tailpieces.

Channel-lock pliers can be used in a pinch due to their long handles, but it is much more difficult to grip faucet mounting nuts with this particular tool. Most intermediate to experienced DIYers who do occasional plumbing work will want to own a basin wrench as well as channel-lock pliers

Basin Wrench

  • Does one job, but does it very well
  • Self-adjusting gripping head
  • Rotating gripping head is perpendicular to handle during use

Channel-Lock Pliers

  • A more versatile tool, with many uses
  • Jaws must be manually adjusted
  • The gripping head is a straight-line extension of the handles

How To Maintain Basin Wrench?

The fundamental maintenance for a basin wrench is the same as for any metal hand tool. After every use, wipe it down with a fresh cloth to clean it. It’s a good idea to occasionally spray some light machine oil on the pivoting joint. If any corrosion appears, clean the tool with an oil-dampened cloth. It should be kept somewhere dry.

You shouldn’t ever require a second basin wrench if you keep up with the absolute minimum maintenance.

The Bottom Line

Sink faucets can be installed or removed with the help of a basin wrench.

As you can see, using a basin wrench to successfully loosen or tighten the faucet mounting nut takes some practice. But once you get it right, it can be a very helpful tool for your plumbing projects at home.

More Tool Post: