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The Best Steel Feeler Gauge

Last updated on June 26, 2020

We looked at the top 10 Steel Feeler Gauges and dug through the reviews from 4 of the most popular review sites including ToolEver, Fully Instrumented and more. The result is a ranking of the best Steel Feeler Gauges.

Best Steel Feeler Gauge

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Our Picks For The Top Steel Feeler Gauges

Show Contents
Our Take
  Best Overall

Hotop Dual Marked Metric & Imperial Gap Steel Feeler Gauge, 16-Blade, 2-Pack

Hotop

Dual Marked Steel Feeler Gauge, 16-Blade, 2-Pack

Overall Take

Portable PickSince this steel feeler gauge folds up to become compact, you'll have no trouble transporting it from home to the job site.

  Runner Up

Proto J000TL Long Steel Feeler Gauge, 25 Blade

Proto

Long Steel Feeler Gauge, 25 Blade

Overall Take

Dual MeasurementsEtched within each steel feeler gauge blade is the blade's decimal size, as well as its metric equivalent.

  We Also Like

Rustark Standard SAE Dual Marked Metric & Imperial Steel Feeler Gauge, 2-Pack

Rustark

Dual Marked Steel Feeler Gauge, 2-Pack

Overall Take

360-Degree Swivel DesignThis steel feeler gauge's 360-degree swivel design allows you to quickly fan out the blades when you're ready to use them.

  Strong Contender

TraderPlus Stainless Steel Feeler Gauge Dual Marked Metric and Imperial Gap Feeler Gauge, 32 Blade, 2-Pack

TraderPlus

Dual Marked Steel Feeler Gauge, 32 Blade, 2-Pack

Overall Take

Thin and FlexibleWith this steel feeler gauge having thin and flexible blades, you won't have any trouble using the tool in hard to reach spaces.

  Also Great

Glarks Dual Standard SAE & Metric Marked Imperial Gap Steel Feeler Gauge, 32 Blade, 2-Pack

Glarks

Dual Standard SAE & Metric Marked Imperial Gap Steel Feeler Gauge, 32 Blade, 2-Pack

Overall Take

Storage Case IncludedKeep your steel feeler gauge neat and organized in the provided plastic storage case.

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17

Products Considered

We identified the majority of the steel feeler gauges available to purchase.
10

Products Analyzed

We then selected the leading and most popular products for our team to review.

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4

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources.

3,527

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon.

The Best Overall

Hotop Dual Marked Metric & Imperial Gap Steel Feeler Gauge, 16-Blade, 2-Pack

Our Expert Score
9.8
Our Take

Each of the 16 blades within the steel feeler gauge are constructed from 65 manganese steel. Not only are they durable, but they also have metric and imperial markings that are easy to read. The nut holds the blades together, however, it can be removed when you need to access a single blade.


The Best Bang For Your Buck

Rustark Standard SAE Dual Marked Metric & Imperial Steel Feeler Gauge, 2-Pack

Our Expert Score
9.8
Our Take

You'll find the steel feeler gauge blades have both millimeter and inch markings. This particular set comes with a straight feeler gauge that features 32 blades and a bent feeler gauge with 16 blades. The surface of each blade is coated with an anti-rust oil that for protection.

Our Steel Feeler Gauge Findings

Hotop Dual Marked Metric & Imperial Gap Steel Feeler Gauge, 16-Blade, 2-Pack

What We Liked: Each of the 16 blades within the steel feeler gauge are constructed from 65 manganese steel. Not only are they durable, but they also have metric and imperial markings that are easy to read. The nut holds the blades together, however, it can be removed when you need to access a single blade.

Proto J000TL Long Steel Feeler Gauge, 25 Blade

What We Liked: This lightweight steel feeler gauge is thin and foldable. It will fit neatly in any tool bag pocket or chest drawer. Users will appreciate the dual measurements, which are conveniently etched into both sides of each blade for easy identification.

Rustark Standard SAE Dual Marked Metric & Imperial Steel Feeler Gauge, 2-Pack

What We Liked: You’ll find the steel feeler gauge blades have both millimeter and inch markings. This particular set comes with a straight feeler gauge that features 32 blades and a bent feeler gauge with 16 blades. The surface of each blade is coated with an anti-rust oil that for protection.

TraderPlus Stainless Steel Feeler Gauge Dual Marked Metric and Imperial Gap Feeler Gauge, 32 Blade, 2-Pack

What We Liked: Whether you’re a mechanic, engineer or designer, you’ll find this steel feeler gauge set invaluable. You’ll get two gauges with your purchase, each of which are made from stainless and hardened tempered steel. The blades are bound together to prevent loss, although they can be easily separated when you need to access a single blade.

Glarks Dual Standard SAE & Metric Marked Imperial Gap Steel Feeler Gauge, 32 Blade, 2-Pack

What We Liked: Constructed from a high-quality steel that is durable and rust resistant, this steel feeler gauge is a must-have item for your tool chest. Its heat processed with a chrome finish, so it also has an attractive appearance. Each of the 32 blades have clear measurement markings for an accurate reading every time.

Our Steel Feeler Gauge Buying Guide

Whether you are a professional or a do-it-yourselfer, a steel feeler gauge is an important tool to have in your tool bag. It’s used to measure the space between two objects, typically to determine the exact size of a gap. It’s helpful for measuring everything from spark plug gaps to tappet clearances to guitar gaps. If you’re in the market for a steel feeler gauge, this guide has all the information you need to make an informed decision.

Review the construction of the steel feeler gauge first. One made of 65 manganese steel is an excellent choice, as is one constructed from stainless and hardened tempered steel. Both are extremely durable, tough enough to withstand multiple drops and smooth on the surface.

Check that the steel feeler gauge blades are clearly marked with the measurement system you use most often. Most blades are etched with both metric and imperial measurements for your convenience. Make sure the numbers are easy-to-read, as you’ll want to be able to identify the size of the gap at a glance.

Look at the number of blades the steel feeler gauge provides. Some models only offer 16 blades, while others have twice that amount. The more blades that come with the set, the more precise you’ll be able to get with your measurements.

Determine whether you’d like a straight feeler gauge or a bent feeler gauge. Straight feeler gauges are typically designed to be thin and flexible, while bent feeler gauges allow you to access those hard-to-reach spaces.

Examine the design of the steel feeler gauge. There are models that fold up neatly to take up little room in your tool bag. Others have a 360-degree swivel design that allows you to view all of the blades at once. No matter which type you choose, it’s important that you are able to remove individual blades as needed. For example, the blades may be bound together at the bottom by a nut that you simply need to unscrew to release them.

Simplemost Fun Fact

One form of measurement or another has been in use since ancient times. In the beginning, measurements weren’t as accurate. For example, a human foot was often used to calculate distance, however, not all humans have the same size feet. Even the Egyptian cubit was based on the length of a person’s arm from the elbow to the tip of their middle finger.

Over time, more accurate devices were developed. Wooden rulers have been in use since 2650 BC, while measuring tapes didn’t get their start until the early 1800s. Obelisks and sundials were used in 1971 BC to tell the time of day, but mechanical clocks didn’t make an appearance until the 14th century. Today, we have access to an endless list of measuring tools, including protractors, thermometers, barometers and steel feeler gauges.

The Steel Feeler Gauge Tips and Advice

  • Most steel feeler gauges come with an anti-rust lube oil coating to prevent pitting and corrosion. It is important that you are aware that if you use the tool as-is, you’re sure to get oil on your hands. You can either wash your hands with a grease-fighting dish soap afterward, wear a pair of gloves or remove the oil coating by wiping the tool down with rubbing alcohol. As long as you clean your steel feeler gauge regularly and dry it immediately after each cleaning, you won’t have to worry about rust forming on the blades.
  • It’s a good idea to store your steel feeler gauge in a tool bag or tool chest when not in use, assuming it doesn’t come with its own plastic storage case. Not only will this protect the tool from dust and dirt, but it will prevent accidental misplacement of the tool or loss of any of the tool’s blades.
  • There are several factors you’ll want to consider when comparing the price of steel feeler gauges on the market. These include the number of feeler gauges in the package, the number of blades each feeler gauge has and any extra features that make the tool more valuable. The Hotop Dual Marked Steel Feeler Gauge, 16-Blade, 2-Pack and the TraderPlus Dual Marked Steel Feeler Gauge, 32 Blade, 2-Pack are among the most affordable. You’ll pay a moderate price for the Rustark Dual Marked Steel Feeler Gauge, 2-Pack, while the¬†Proto Long Steel Feeler Gauge, 25 Blade comes in with the highest price tag.

About The Author

Alicia Bodine
Alicia Bodine 

Alicia Bodine is a New Jersey-based writer specializing in finance. With more than 15 years of experience, her work has appeared on leading financial publications. She's also a certified Ramsey Solutions Master Financial Coach.