Best Radius Gauges of 2026
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Radius gauges are precision measuring tools used to determine the radius of an object's curve or edge. These gauges come in a variety of shapes and sizes, and are commonly used in industries such as automotive, woodworking, and metalworking. They are an essential tool for ensuring that parts are manufactured to the correct specifications, and can help to improve the accuracy and quality of finished products. Whether you are a professional tradesperson or a DIY enthusiast, investing in a high-quality set of radius gauges is sure to make your work easier and more precise.
At a Glance: Our Top Picks
Top 10 Radius Gauges
GLARKS G-985 Stainless Steel Radius Gauge Set
The GLARKS G-985 Gauge Set includes four high-quality radius fillet gauges, ranging from R0.3 to R25mm. Each gauge is crafted from durable steel with a polished finish, ensuring longevity and resistance to rust. You will appreciate the clear markings on each leaf, making it easy to identify the right gauge for your needs. This set is conveniently housed in a portable plastic box, allowing you to carry and store it with ease, perfect for tool and die makers or machinists who require precision in their work.
MusicNomad Precision Fretboard Radius Gauge Set
The MusicNomad Fretboard Gauge is an essential tool for guitarists, featuring a precision radius gauge set with measurements from 7.25” to 20”. This allows you to accurately measure the fretboard and string radius on electric, acoustic, and bass guitars, ensuring optimal playability. The innovative black finish helps you easily see if the strings are touching, while the etched instructions eliminate any guesswork. Crafted from premium stainless steel with polished smooth edges, this gauge guarantees durability for years of use.
Mitutoyo 186-105 Radius Gauge Set with Clamp
The Mitutoyo Radius Gauge is designed for precision in measuring both concave and convex radii. Each gauge has its size clearly stamped, making it easy for you to select the right one quickly. The combination of concave and convex gauges allows for versatile applications in various projects. Additionally, with a locking clamp, you can secure your measurements confidently, ensuring accuracy and ease of use. This product not only enhances your efficiency but also improves the quality of your work.
Hilitand Radius Fillet Gauge for Measuring
The Hilitand Radius Gauge is a durable stainless steel tool designed for measuring both convex and concave surfaces. Its robust construction ensures it resists rust, providing you with a reliable measuring device. Each leaf is clearly marked, making it easy for you to identify the correct one for your needs. With various measuring ranges available, this gauge allows you to accurately assess the radius of different objects, making it invaluable for tool and die makers, machinists, and other professionals.
FTVOGUE Stainless Steel Radius Fillet Gauges
The FTVOGUE Radius Gauges are crafted from high-quality stainless steel, ensuring durability and rust resistance. With two types of leaves, you can easily measure both convex and concave surfaces, making your tasks more versatile. Each leaf is clearly marked, allowing you to quickly identify the right measurement tool you need. Moreover, the set includes four gauges in different sizes, catering to various measurement needs, which is particularly beneficial for toolmakers and machinists.
Universal Guitar Radius Gauge Tool Set
The Bnineteenteam Radius Gauge is a high-quality tool designed to aid in guitar repair and maintenance. Made from durable metal, it withstands breakage and ensures long-lasting use. You can easily set your guitar bridge saddle to match the fingerboard radius, ensuring optimal playability. This gauge also helps expand your guitar knowledge while enhancing your hands-on skills, making it a perfect addition for both beginners and experienced players alike. With nine different sizes, it suits various guitar types and needs.
Hilitand Stainless Steel Radius Fillet Gauge R25-50MM
The Hilitand Radius Fillet Gauge is crafted from stainless steel, ensuring it resists rust and remains durable for long-term use. It features two types of leaves, allowing you to measure both convex and concave surfaces with ease, making it versatile for various tasks. Each leaf is clearly marked, so you can quickly identify the size you need without confusion. Additionally, there are different measuring ranges available, giving you flexibility to accurately check the radius of different objects, which is especially handy for tool and die makers or machinists.
Oumefar Stainless Steel Radius Gauge Set R1-6.5MM
The Oumefar Radius Gauge is a practical tool designed with clearly marked leaves, making it easy for you to select the right size quickly. It features both convex and concave leaves, allowing you to measure different surface types with ease. Crafted from stainless steel, this gauge is durable and resistant to rust, ensuring long-lasting use. Additionally, with various sizes available, you can choose the perfect range to measure the radius of your objects accurately and conveniently.
eMagTech Stainless Steel Radius Fillet Gauge Set
The eMagTech Radius Gauge Set features a comprehensive measuring range suitable for various applications, including home improvement and machine installation. You can easily measure the thickness or width of screws, valves, and bearings, making it ideal for designers and engineers. The easy-to-use design includes clearly marked leaves, allowing you to quickly identify the one you need. With its excellent 360-degree locking screw, unfolding and folding the gauge is effortless, enhancing your overall user experience.
DEWIN Stainless Steel Radius Fillet Gauge Set
The DEWIN Radius Fillet Gauge is a practical tool designed for precise radius measurement. Each leaf is clearly marked, making it simple for you to select the right size quickly. It features both convex and concave leaves, allowing you to measure various surfaces easily, whether inside or outside curves. Made from durable stainless steel, this gauge resists rust and ensures long-lasting use. Its compact design means you can carry and store it without hassle, offering you convenience and reliability in your measuring tasks.
Frequently Asked Questions (FAQs)
1. What is a radius gauge set?
Radius gauges, also known as fillet gauges, measure the concave and convex radius or fillet of metal objects. These tools are commonly used by inspectors, toolmakers, and die-sinkers for checking angles. They are also used for carpentry when checking the radius on a workpiece on a lathe.
2. What is the measuring range for radius gauge?
Explanation: Measuring range of radius gauge is generally 0.00075 to 0.025 meter. The blades are specially shaped and can be used to measure fillets and radius against shoulders or corners.
3. What is difference between radius and feeler gauge?
A radius gage, as you would expect, measures the radius of an object, either by measuring its exterior or interior space. A feeler gage measures the width of a gap.
During our radius gauge research, we found 84 radius gauge products and shortlisted 10 quality products. We collected and analyzed 4,953 customer reviews through our big data system to write the radius gauges list. We found that most customers choose radius gauges with an average price of £12.40.
The radius gauges are available for purchase. We have researched hundreds of brands and picked the top brands of radius gauges, including GLARKS, MusicNomad, Mitutoyo, Hilitand, FTVOGUE.
Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.