How to Clean Mechanic Tools Properly

Learn the proper way to clean and maintain those mechanic tools so they stay looking good as new.

To quote an unknown wiseman — useful tools are only as good as their maintenance. It may seem to be a simplistic observation, but when it comes to mechanic’s tools, it’s a critical caution.

Essential for getting a job done effectively, those trusty tools take a lot of hard knocks (literally), in addition to accumulating dirt, grease, grime and other buildups that can have a damaging effect on their performance and longevity.

Regular cleaning and maintenance are key to the good health of most things in life, so let’s take a look at how proper tool maintenance should be executed — along with everything else you’ll need to know to keep your tools work-ready when required.

Typical Cleaners

Before we go through the tool-cleaning process, consider the list of cleaning options available to you. Just be sure to always follow the instructions provided by the product manufacturers, as some tools may have specific cleaning recommendations based on their materials.

Solvent-based cleaners

These chemical products are useful for removing heavy grease and grime, and commonly involve acetone, mineral spirits, and denatured alcohol. Take note that solvent-based cleaners can release fumes that may be harmful if inhaled, so always use them in a well-ventilated area, such as an open garage or outdoors.

Degreasers

These products are designed to remove surface grease and oil and are usually based on solvent and/or water-based formulas. They are effective in breaking down tough residues and restoring tools’ cleanliness.

Citrus-based cleaners

During the last twenty years, natural alternatives to harsh chemically-based cleaners have really taken off. These blended products are typically based on natural citrus oils that tend to be slightly acidic. Known for their strong degreasing properties, they have the added bonus of being environmentally-friendly and leaving behind a pleasant citrus smell.

Soap and water

Believe it or not, in the case of light tool-cleaning, soap and water alone can be highly effective.

Reliable “Off-The-Shelf” Brands

When it comes to cleaning mechanic tools, there are several off-the-shelf brands that offer reliable products. Some are specifically formulated for heavy-duty applications, while others are just excellent all-around cleaners. They’re all readily available though, and can be used without fear of compromising on quality or performance.

• Simple Green All-Purpose Cleaner. Non-toxic and biodegradable, this cleaner can effectively remove grease and grime from tools. It can be diluted with water for lighter cleaning or used full-strength for tougher jobs.
• Gunk Engine Degreaser. This solvent-based cleaner is designed to remove heavy grease and oil buildup from engine parts, but it can also be used on mechanic’s tools.
• WD-40. Likely already sitting on your garage shelf, this water-based cleaner is designed to remove grease, oil, dirt, and grime from a variety of surfaces, including tools. It can be used on both metal and plastic surfaces, and has added corrosion inhibitors to help protect against flash rust.
• Krud Kutter Heavy Duty Cleaner & Degreaser. Designed to remove stubborn grease and grime from a variety of surfaces, this cleaner comes in a several different formulas – including an extra-strength concentrate specifically intended for automotive use.
• Dawn Dish Soap. Rarely considered when cleaning mechanic tools, Dawn is actually a great option because it’s gentle and effective – and a little goes a long way.

While these are just a few examples of off-the-shelf options, there are a number of other products available too, whether they are found at a parts store or in the grocery store. Nevertheless, be sure to follow all manufacturer instructions carefully, to ensure both proper cleanliness and the protection of your tools going forward.

Prep Time

Now, like any other process, a few minutes of prep is necessary to ensure a smooth and efficient cleaning session while keeping you safe throughout the process.

First things first, whether you’re planning to use a heavy-duty degreaser like Gunk or simple soap and water, you should always protect yourself. Safety glasses and rubber gloves really are a must, as some cleaners utilize very harsh or acidic elements. Additionally, unless you enjoy tearing up your favorite jeans or throwing away that venerable Rolling Stones ‘70 t-shirt, cover up your clothing by donning a proper chest-wide apron before you start.

Next, take inventory. Collect all necessary cleaning supplies and operational tools including degreasers, solvents, and cleaners, depending on your preference, as well as cloth shop towels, paper shop towels, and a water bucket or plastic basin for tool soaking. Set up some easy access to running water, so you’re not trudging through the kitchen or other general living areas every time you need to rinse something.

Gather some scrub brushes. We recommend having a variety on hand — wire brushes, which are useful for removing stubborn dirt, grease, and rust from metal tools as well as nylon brushes, which are gentle enough to use on delicate surfaces like plastic and rubber, but still effective at removing dirt and grime.

Scraper tools are also useful, particularly for removing caked-on dirt, grime, and paint from metal surfaces. They come in various shapes and sizes, including scraper attachments for power drills. Compressed air is also wise to have on hand, as it can be used to quickly and easily blow dirt, dust, and other debris out of hard-to-reach areas.

General Cleaning Process

Once you have all of the necessary elements at hand, you can work through a simple, step-by-step process to clean mechanic tools.

1. First, if necessary, break down the tool into its individual sub-components to ensure that each element can be thoroughly cleaned.

2. Next, remove any excess dirt or grime. We suggest using a wire or soft brush for this task, or even a hand scraper for particularly dirty tools.

3. If necessary, place the tools in a bucket or plastic basin filled with warm water and your desired cleaning product, letting the tool soak for at least a few minutes to help dislodge any stubborn dirt or grime.

4. Then comes scrubbing. Using a wire or soft-bristled brush (depending on the particular implement), scrub the tool to remove any clag or particulates. Pay extra attention to hard-to-reach areas such as crevices and/or corners.

5. Once the tool or its sub-components are thoroughly scrubbed, rinse it/them with clean water to remove any/all cleaning solution.

6. Then, use a clean towel to wipe the tool or its sub-components dry. It’s also a good idea to let the tool or its sub-components air dry. Putting away a damp tool can lead to mold, mildew, or even rust.

7. Lastly, reassemble any and all pieces of the tool (if necessary).

Tool Protection

So, once those tools are clean, how do you protect them from corrosion or rust?

The key to preventing rust formation is lubrication and proper storage. You want to keep your tools in a clean and dry place — preferably in a protective case or container to prevent damage, follow-on corrosion, and/or dust accumulation.

As for lubrication, there are several options including:

• Rust inhibitor sprays. These sprays are designed to penetrate the surfaces of metals, thereby creating protective barriers against moisture and rust.
• Silicone sprays. The silicone in these sprays creates a thin, protective layer over metal surfaces, acting as a barrier against moisture and corrosion. It also provides a lubricating effect, making it easier to use and handle the tools.
• Oil-based protectants. A light coat of oil can be used in this event, although you should only use oils that avoid post-application residue.
• Mechanics Wax. A thin layer of mechanics wax can be applied to metal tools to create a protective coating.

How Often Should Tools Be Cleaned?

The frequency of tool cleaning is highly subjective and typically based on location, climate and pattern of use.

As a general guideline, however, it’s a good idea to clean tools after each use, or at least once a month if you’re not planning to use them on a regular basis.

On the other hand, if your tools are being used for particularly heavy-duty work such as professional or semi-professional automotive repair, they should be wiped off and quick-cleaned after each task in order to help resist dirt, grime, or other particulate buildup.

Remember, you can’t fix a problem unless your tools are right, and if your tools aren’t right, whatever problem you’re facing will be harder to resolve than it needs to be.