Best Inch Radius Gauges in 2026
Daisy
Last Updated: Jul 17, 2026
Daisy
Last Updated: Jul 17, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Radius size is stamped on each gage
Both concave and convex radius gages
With a locking clamp.
Measurement Graduations: 1/64 inches
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Taylor Toolworks | 9.95 | ✅ | ✅ | ✅ |
Use these acrylic radius gauges to quickly measure and lay out inside and outside radii from 1/8 inch to 2 inches
Each gauge is CNC machines from 3/16 inch acrylic with polished edges
Includes the following sizes: 1/8, 1./4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/4, 1-1/2, 1-3/4, and 2 inch thick
Each gauge is clearly marked for easy identification
Can be used when turning spindles, duplicating moldings or checking/creating rounded corners
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Onkata | 9.88 | ✅ | ✅ | ✅ |
Best Performance - The Starrett Telescoping Gage is the perfect tool for determining the true size of holes, slots, and recesses up to 6" (150mm). This tool will become an indispensable tool in your arsenal.
Precision Ground Radius - Each gage is precision ground with a radius, providing two-point contact for maximum accuracy. This guarantees that the measurement you take is precise and consistent every time.
Durable Construction - The telescoping gage is made from the highest quality material ensuring that it will last through even the most rigorous use. It can handle any job you throw at it, making it a versatile tool for your workshop.
Reliable - Featuring a handle with one rigid contact arm and one spring-tensioned telescoping contact arm which the ends of both contacts are hardened and ground to a radius to allow proper clearance on the smallest hole the gage will enter.
The Standard for Excellence - Manufacturing quality tools that provide consistent and reliable performance since 1880, Starrett's commitment to product excellence, has earned them a reputation as one of the most trusted names in the industry.
Includes 5 Gages, Range: 1/2-3/4-Inch, 3/4-1 1/4-Inch, 1 1/4-2 1/8-Inch, 2 1/8-3 1/2-Inch, 3 1/2-6-Inch
One rigid contact arm
One spring-tensioned telescoping contact arm
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cgoldenwall Store | 9.82 | ✅ | ✅ | ✅ |
Digital accuracy radius gauge: Can both measure Outer & Inner Radius of arcs & Depth and Step measurement. With Digital dial indicator function,Measuring Range: length displacement 0-13mm (0 ~ 0.5 inch); Resolution: 0.005mm (0.00005 inch); Radius Range: 5-700mm (0.2 ~ 27.5 inch)
Large High Definition Display: the readings are clear at a glance, shown Inner and outer diameter ,Measuring Jaws , Radius R value, Metric and Imperial Units ,length,Arc chord height . With data connection port can be connected to the computer to output data, more convenient and quick.
Inch/Metric Conversion: Switchable between mm and inch, Suitable for All Kinds of Measurement, with simple operation, fast reading, small size, convenient reading, hand-held Measurement characteristics.
Comes in nicely fitted case and 5 Interchangeable Measuring Jaws: 10mm/ 20mm/ 30mm/ 60mm/ 100mm. You can choose corresponding jaws according to your measuring needs.
Daily MEASURE helper：Work well on daily basis arc measurement, such as mechanical parts, wooden molds, construction steel molds, etc. ATTENTION: the battery is NOT included in the package due to air transport regulation.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| tanus | 9.69 | ✅ | ✅ | ✅ |
Working Principle - Double action handles are rigidly attached to the contact plungers and are automatically self-centering.
Function - Assist in quick checking of holes, slots and recess up to 6 inch deep.
Scope of Application - Telescopic spring piston in the hole (or groove), can conduct inner diameter detection, used with micrometer or caliper, with knurled locking device.
Advantage - The ends of both contact are head treated steel and precision ground to a radius allowing proper clearance on the smallest hole the gauge will enter.
Super Quality - Self centering telescoping gauge has high rigidity, good wear resistance, durable in use.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| kimllier | 6.58 | ✅ | ✅ | ✅ |
Size: Range - 5/16-6 inch (8mm to 150mm)
Material: Contact points are hardened tool steel and precision ground in the end measuring radius
Design: Rigid handle and double action design (self-centering) for quick checking of inside measurements
Product Use: Telescoping gage is used to obtain the exact size of holes and slots, which is suitable for factories, schools, offices and other places
Product Include: 6Pcs precision telescoping gage set 5/16 - 6 inch
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Cgoldenwall | 1 |
| Hilitand | 1 |
| Kimllier | 1 |
| Mitutoyo | 1 |
| Starrett | 1 |
| Taytools | 1 |
We've carried out a comprehensive analysis of 79 reviews on radius gauges, using our selection criteria to identify the best options in the test, measure & inspect. Our findings reveal that most customers typically select radius gauges priced around $113.31, with top brands including mitutoyo, together-life, cgoldenwall, tanstic, musicnomad, walfront, mudder, dreamtop and starrett and insize
Our team of expert editors reviewed these high-quality items and handpicked the top 6 radius gauges for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the test, measure & inspect category. These include amazon.com, together-life, cgoldenwall store, taisite, hotzzz, temic sinteem, topdream, onkata and gaveamdpraic and taylor toolworks .
We are dedicated to assisting our users in finding the right gauges Products based on their needs, saving them considerable time when choosing which radius gauges to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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