Best Feeler Gauges of 2025

Brian Howie Avatar
Brian Howie
Last Updated: Jan 16, 2025

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Feeler gauges are essential tools for anyone who works with machinery or mechanical devices. These thin, flat blades come in a variety of sizes and are used to measure the gap between two objects. They are commonly used to ensure that engine parts are properly aligned, but they can also be used for a variety of other tasks. Feeler gauges are made from high-quality materials and are designed to be durable and long-lasting. They are a must-have for anyone who wants to ensure that their machinery is running smoothly and efficiently.

At a Glance: Our Top Picks

AMERICAN MUTT TOOLS Feeler Gauge Set Cover #TOP 1
AMERICAN MUTT TOOLS Feeler Gauge Set
ftb score rating icon 9.9
Steel Feeler Gauge Dual Marked Metric and Imperial Tool Cover #TOP 2
Steel Feeler Gauge Dual Marked Metric and Imperial Tool
ftb score rating icon 9.8
Spurtar Universal Feeler Gauge Set Cover #TOP 3
Spurtar Universal Feeler Gauge Set
ftb score rating icon 9.6

Top 10 Feeler Gauges

AMERICAN MUTT TOOLS Feeler Gauge Set

AMERICAN MUTT TOOLS Feeler Gauge Set Cover
AMERICAN MUTT TOOLS 2pc Straight and Angled Feeler Gauge Set – Includes Inch and Metric Feeler Gauges – Filler Gauge Set, Feeler Gauges for Valves, Metric Feeler Gauge Set, Valve Feeler Gauge Set

The AMERICAN MUTT Feeler Gauges are designed for precision and durability, making them a must-have for any workshop. You can rely on these gauges for accurate measurements, ensuring your projects are executed flawlessly. The innovative angled design provides access to tight spaces, allowing you to work efficiently. With clearly marked sizes and laser-etched measurements, reading and interpreting the gauges becomes a simple task. The ultra-thin gauges are perfect for fine adjustments, giving you the precision needed for engineering and automotive applications.

What We Like
Good quality
Complete set of gauges
Accurate for valve lash
Great for tight spots
Classic design feel
What We Don't Like
Limited usage time
Pending thickness measurement

Steel Feeler Gauge Dual Marked Metric and Imperial Tool

Hotop-Feeler Gauge-01
0.04 - 0.88 mm
Steel Feeler Gauge Dual Marked Metric and Imperial Tool Cover
Stainless Steel Feeler Gauge Dual Marked Metric and Imperial Measuring Tool(0.04-0.88 mm, 32 Blades)

This feeler gauge set is made of durable 65 manganese steel and has 32 blades thickness. This foldable tool is easy to store and take with you. The dual markings in metric and imperial allow for easy identification, with numbers etched into the gauge for convenience. The metric sizes range from 0.04-0.88mm while the inch sizes range from 0.0015-0.035 inches. It comes with anti-rust oil on the stainless steel to prevent rust.

What We Like
Various sizes available
Accurate and easy to use
Great quality for the price
Compact and foldable design
What We Don't Like
Sizes can be hard to read
Some units overly oiled
#TOP 3

Spurtar Universal Feeler Gauge Set

TFG0032
Silver
Spurtar Universal Feeler Gauge Set Cover
Spurtar 32 Blades Feeler Gauges 0.0015-0.035'' (0.04-0.88 mm) Stainless Steel Feeler Gauge Set SAE/Metric Feeler Gauge for Measuring Gap Width and Thickness for Guitar, Spark Plug, Piston Measure

The Spurtar Universal Feeler Gauge Set is a practical and durable tool set designed for measuring gap width and thickness in various applications. Made of stainless steel, this gauge set comes with 32 blades of varying thickness, allowing you to measure gaps from 0.0015 Inch to 0.035 Inch (0.04mm to 0.88 mm). With clear and easy-to-read markings, you can quickly and accurately measure gap widths and thicknesses in both metric and imperial sizes. The laser-etched numbers and scales ensure that the markings won't wear out easily, making this feeler gauge set long-lasting. Additionally, the anti-rust oil coating prevents the gauge from rusting and ensures easy opening. Whether you're a designer, engineer, or machinist, the Spurtar Universal Feeler Gauge Set is a practical and reliable tool that belongs in your toolbox.

What We Like
Affordable pricing
Good measurement accuracy
Sturdy and reliable build
Wide range of sizes
What We Don't Like
A bit oily upon arrival
Numbers can be hard to read
#TOP 4

GEARWRENCH 32 Blade Deluxe SAE/Metric Feeler Gauge

161D
Silver
GEARWRENCH 32 Blade Deluxe SAE/Metric Feeler Gauge Cover
GEARWRENCH 32 Blade Deluxe SAE/Metric Feeler Gauge | 161D

This GEARWRENCH 32 Blade Deluxe SAE/Metric Feeler Gauge measures clearances from 0.038 to 0.889mm and comes in black color. Manufactured in the United States, it has a compact package size of 7.62 L x 1.524H x4.064W(centimeters). This gauge is perfect for measuring gaps and clearances in your machinery, ensuring accuracy for your projects.

What We Like
Great quality feeler gauges
Made in USA
Lifetime warranty
Accurate measurements
No burrs on blades
What We Don't Like
Some slight burrs on ends
Shorter than typical feelers
#TOP 5

Spurtar 32 Blades Stainless Steel Feeler Gauge

Gauge001
Spurtar 32 Blades Stainless Steel Feeler Gauge Cover
Spurtar Feeler Gauges 0.001-0.04" (0.03-1.00mm) 32 Blades Tapered Feeler Gauge Set Stainless Steel Dual Marked SAE and Metric for Measuring Gap Thickness or Width for Spark Plug, Valve, Piston, Guitar

The Spurtar 32 Blades Stainless Steel Feeler Gauge is a user-friendly and easy-to-identify tool for measuring gap width or thickness. It features dual markings in SAE and Metric units, ranging from 0.001inch to 0.04inch (0.03mm to 1mm), and the numbers of size are etched into the feeler gauge for easy identification. The gauge is made of high-quality flexible 65 manganese steel, which is hardened and polished for precise and long-lasting usage. It is foldable, comes with a plated steel case, and is coated with vaseline to prevent rust and ensure ease of use.

What We Like
Accurate measurements
Clear markings
Great size selection
Pointy ends for precision
Excellent for various uses
What We Don't Like
Arrived slightly oily
#TOP 6

Stainless Steel Feeler Gauge Set

Hotop-Feeler-08
0.038-1.02 mm
Stainless Steel Feeler Gauge Set Cover
Hotop 32 Blades Steel Feeler Gauge Tapered Feeler Gauge Set Stainless Steel Dual Marked Metric and Imperial Measuring Tool for Measuring Gap Thickness or Width(0.038-1.02 mm,25 Blades)

This feeler gauge set is made of 65 manganese steel and includes 25 blades of various thicknesses. The dual metric and imperial markings, ranging from 0.038 mm to 1 mm or 0.0015 inch to 0.04 inch, are etched into the blades for easy identification. The foldable design makes it easy to store and take on-the-go. Anti-rust oil is applied to the stainless steel to prevent rusting.

What We Like
Quick delivery
Great for various projects
Inexpensive value
Easy to read
Useful for clearances
What We Don't Like
Faint markings
Heavy oil coating
#TOP 7

ARES Tapered and Offset Feeler Gauge Set

11042 11043
ARES Tapered and Offset Feeler Gauge Set Cover
ARES 11042-2-Piece Tapered Feeler Gauge and Offset Feeler Gauge Set has 32 Dual-Marked SAE & Metric Sizes - Offset has 16 Dual-Marked Sizes - Precisely Measure Mechanical Clearances

The ARES 11042 2-Piece Feeler Gauge Set includes a tapered gauge with 32 dual-marked SAE and metric sizes, and an offset gauge with 16 dual-marked sizes. The tapered gauge has a tapered profile for accessing tight spaces, and the offset gauge has an offset design for awkward areas. Each blade is marked with both metric and SAE sizing, making it easy for you to measure tappet clearances, spark plug gaps, bearing clearances, piston ring gaps, and more. The set folds neatly into itself for easy transportation and storage.

What We Like
Accurate valve gauges
Easy to read sizes
Handy for spark plug gaps
Well-made product
What We Don't Like
Assembly required for use
Quality not as expected
#TOP 8

CRAFTSMAN CMMT14105 Feeler Gauge

CMMT14105
Silver
CRAFTSMAN CMMT14105 Feeler Gauge Cover
CRAFTSMAN CMMT14105 32-Blade Feeler Gauge

The CRAFTSMAN CMMT14105 Feeler Gauge is a convenient tool that allows you to measure the exact clearance between two parts. With its durable stainless-steel blades, it provides protection against corrosion, ensuring long-lasting performance. The blade range of 0.015” - 0.035” (0.038mm - 0.889mm) offers flexibility for various applications. Whether you need to measure gaps in machinery or automotive components, this feeler gauge has got you covered. Its precise measurements enable you to make accurate adjustments, ensuring optimal performance. The CRAFTSMAN CMMT14105 Feeler Gauge is an essential tool for any DIY enthusiast or professional mechanic, providing the convenience and durability you need for your projects.

What We Like
High quality Craftsman brand
Easy to read
Complete size range
Great for 3D printing
What We Don't Like
Covered in oil
#TOP 9

CHERALKEST Stainless Steel Feeler Gauge Set

CH007
CHERALKEST Stainless Steel Feeler Gauge Set Cover
CHERALKEST Feeler Gauge Set Stainless Steel Thickness Gauge 32 Blades 0.04-0.88 mm (0.0015-0.035 Inch) Dual Marked Metric and Imperial Measuring Tools for Measuring Gap Widths and Thicknesses

The CHERALKEST Feeler Gauge Set is designed for precision in measuring gaps and thicknesses with its 32 stainless steel blades. Made from durable #65 manganese steel, these foldable gauges are not only easy to carry but also convenient to store. You can easily identify sizes thanks to the dual metric and imperial markings, which are etched into each blade for clear visibility. This set measures from 0.0015 to 0.035 inches, making it ideal for tasks like checking tappet and spark plug clearances, ensuring that you can achieve accurate measurements every time.

What We Like
Accurate thickness measurements
High-quality stainless steel
Budget-friendly price
Clear markings on gauges
Good for average DIYers
What We Don't Like
Storage pouch is thin
Protective cage misaligned
#TOP 10

Proto J000TL 25 Blade Long Feeler Gauge Set

J000TL
Multi
One Size
Proto J000TL 25 Blade Long Feeler Gauge Set Cover
25 Blade Long Feeler Gauge Set

The Proto J000TL 25 Blade Long Feeler Gauge Set includes 1/2-inch x 12-inch blades in a steel holder with sizes ranging from .0015-inch to .040-inch, etched with both decimal size and metric equivalent. The set weighs 0.72-lbs and is made in the USA. This feeler gauge set is perfect for accurately measuring gaps and clearances, making it a valuable tool for mechanics and DIY enthusiasts.

What We Like
High-quality engravings
Long reach for tight spots
Accurate for calibration work
Good value compared to competitors
What We Don't Like
Nut may come loose
Stacked feelers out of order
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a feeler gauge used for?

A feeler gauge is a tool used to measure or set very small gaps, typically under 1 mm. It consists of thin, delicate blades that can be inserted into gaps or cracks to determine their width. The blades are protected when folded back into the handle of the gauge.

2. What types of feeler gauges are there?

There are several types of feeler gauges available, including: - Go NoGo feeler gauge - Straight leaf feeler gauge - Tapered feeler gauge - Double-ended gauge - Offset gauge - Feeler strip These different types of feeler gauges offer versatility for measuring and setting gaps in various applications.

3. Can you gap a spark plug with a feeler gauge?

Yes, you can use a feeler gauge to gap a spark plug. In addition to the feeler gauge, you will need a pair of pliers, preferably straight-handled, to adjust the gap. Some feeler gauges even have wire loops and bending hooks specifically designed for gapping spark plugs, making the process more convenient and precise.

Editor's Notes

During our feeler gauge research, we found 24 feeler gauge products and shortlisted 10 quality products. We collected and analyzed 122,295 customer reviews through our big data system to write the feeler gauges list. We found that most customers choose feeler gauges with an average price of $10.70.

The feeler gauges are available for purchase. We have researched hundreds of brands and picked the top brands of feeler gauges, including AMERICAN MUTT TOOLS, Hotop, Spurtar, GEARWRENCH, ARES. The seller of top 1 product has received honest feedback from 275 consumers with an average rating of 4.9.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.