What Size Allen Wrench Do I Need for My Garbage Disposal?

Do you need to know what size Allen wrench you need for your garbage disposal? This post has the answer, along with some other tips on Allen wrenches.

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You have a garbage disposal that has seen better days. It’s been making strange noises lately, and you’re worried that it’s going to give out on you soon. You’ve been meaning to replace it, but you’re not sure what size allen wrench you need for the job.

Don’t worry, we’ve got you covered. In this article, we’ll tell you everything you need to know about finding the right size allen wrench for your garbage disposal. We’ll also give you some tips on how to replace your garbage disposal if necessary.

Keep reading to learn more!

The Different Types of Allen Wrenches

There are many different types of Allen wrenches, and the size you need will depend on the job you are doing. The most common sizes are 3/16, 1/4, 5/16, and 3/8. If you are working on a particularly tough project, you may need a larger size such as 1/2 or even 3/4. Let’s take a closer look at the different sizes of Allen wrenches.

Standard Allen Wrenches

There are two types of Allen wrenches, metric and standard. Standard Allen wrenches are 0.050 inches (1.27 mm), 0.073 inches (1.85 mm), 1/16 inch (1.6 mm), 5/64 inch (2 mm), 3/32 inch (2.4 mm), 7/64 inch (2.8 mm), 1/8 inch (3.2 mm), 9/64 inch (3.6 mm) , 5/32 inch (4 mm) , 11/64 inch (4.4 mm) , 3/16 inch (4.8 mm) , 13/64 inch (5mm) , 7/32 inch(5.5mm), 15 / 64(5 .9mm) . 1 / 4 “(6 .3mm )

The size of the wrench you need will depend on the screws you are trying to loosen or tighten

Metric Allen Wrenches

There are two main types of Allen wrenches — metric and English (or inch), which are just different units of measurement. The metric system is used by most countries in the world (including Canada) and is based on the meter. The English system, on the other hand, is used primarily in the United States and is based on inches.

Different projects will require different sizes of Allen wrenches, so it’s important to know which type you need before you start your project. Metric Allen wrenches are usually identified by the letter “M” followed by a number (i.e. M5 or M8). The number corresponds to the width of the wrench in millimeters. For example, an M8 wrench is 8 mm wide.

Some common sizes of metric Allen wrenches include:

Torx Allen Wrenches

Torx Allen wrenches, also known as star wrenches, have a six-pointed star shaped tip. This type of wrench is often used in electronic applications where a hex wrench might strip the fastener. They are also useful in situations where there is limited clearance around the head of the bolt or screw. Torx wrenches are available in sizes from T10 to T50.

Hex Allen Wrenches

One of the most versatile and useful tools in any home shop is the hex allen wrench. Also known as hex keys or allen keys, these simple L-shaped tools are available in a huge range of sizes to fit any number of different bolts and screws. In this article, we’ll take a look at the different types of allen wrenches available and some tips on how to choose the right one for your needs.

Standard Hex Keys
The most basic type of allen wrench is the standard hex key. These are available in sizes from 0.028″ to 3/8″, with the most common sizes being 1/4″, 5/16″, and 3/8″. Standard hex keys are usually made from heat-treated steel for strength and durability, and they can be used with any type of bolt or screw that has a hexagonal head.

Long Hex Keys
Long hex keys are simply standard hex keys that have been lengthened for added reach. These are available in the same range of sizes as standard hex keys, but they can be up to twice as long. This makes them ideal for applications where a standard hex key won’t be able to reach, such as when working on cars or machinery with recessed bolts.

Fold-up Hex Keys
Fold-up hex keys are similar to standard hex keys, but they have a folding handle that makes them much easier to carry around in your pocket or toolkit. These are available in the same range of sizes as standard and long hex keys, but they’re not always as strong or durable since the hinge point can be a weak spot.

Heavy-duty Hex Keys
Heavy-duty hex keys are made from thicker, heavier steel for added strength and durability. They’re not always available in as many sizes as other types of allen wrenches, but they’re ideal for applications where a regular hex key might strip out or break. These are often used in automotive and industrial settings.

How to Measure the Size of an Allen Wrench

An Allen wrench is a small, L-shaped tool used for tightening or loosening screws with a hexagonal socket. The size of the wrench is determined by the width of theshort arm, and this measurement is given in inches or millimeters. To measure the size of an Allen wrench, you will need a ruler or tape measure.

First, find the short arm of the wrench. This is the arm that fits into thehexagonal socket. Place the ruler or tape measure at the base of the short arm, and measure to the tip. The measurement given in inches or millimeters isthe size of the wrench.

For example, if you are measuring an Allen wrench with a short arm that is 2 inches long, then the size of the wrench is 2 inches. Similarly, if you are measuring an Allen wrench with a short arm that is 50 millimeters long, then the size ofthe wrench is 50 millimeters.

The size of an Allen wrench can be determined by its dimensions or by its use. For example, some wrenches are designed for specific applications such as garbage disposals, and these wrenches will be labeled accordingly. In general, however,the best way to determine the size of an Allen wrench is to measure it directly with a ruler or tape measure.


After much trial and error, we have found that the best size allen wrench for most garbage disposals is a 1/4 inch. This size seems to fit most disposal models snugly and provides enough leverage to get the job done without putting too much strain on your disposal (or your allen wrench).