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An angle finder, also referred to as a “miter protractor” or “angle gauge,” is a valuable tool when cutting pieces of wood to meet an exact angle. A good angle finder should be precise, reliable, easy to use, and durable. Angle finders are available in digital and analog versions and measure different ranges of angles, so the This Old House Reviews Team researched the best angle finders on Amazon. Learn more about our top recommendations below.
Top 5 Angle Finders
- Best Analog Model: Starrett ProSite Miter Saw Protractor
- Best Digital Model: General Tools Digital Angle Finder
- Most Durable: Strongman Tools Heavy-Duty Angle Template Tool
- Best Magnetic: Johnson Level & Tool Magnetic Angle Locator
- Best Multi-Purpose: Bosch Digital Angle Finder
Compare Top Angle Finders
| Product | Material | Weight | Dimensions | Warranty |
|---|---|---|---|---|
| Starrett ProSite Miter Saw Protractor | Plastic | 3.8 ounces | 5.4 x 9.4 x 0.9 inches | 1 year |
| General Tools Digital Angle Finder | Stainless steel | 3.2 ounces | 1.1 x 5.4 x 10.1 inches | 1 year for parts |
| Strongman Tools Heavy-Duty Angle Template Tool | Aluminum | 7 ounces | 13 x 2.4 x 1.1 inches | Not listed |
| Johnson Level & Tool Magnetic Angle Locator | Plastic and acrylic | Not listed | 1.9 x 6.2 x 10.5 inches | 1 year |
| Bosch Digital Angle Finder | Aluminum | 2.4 pounds | 17 x 2.4 x 1.4 inches | Product defects only |
| Product | Material | Weight | Dimensions | Warranty |
Best Analog Model: Starrett ProSite Miter Saw Protractor
Starrett ProSite Miter Saw Protractor
- $46.24
Prices taken at time of publishing.
Key Features
- Seven-inch measuring length
- Made of plastic
- Weighs 3.8 ounces
- 5.4 x 9.45 x 0.85 inches
What Customers Are Saying
Feedback for this analog angle finder was primarily positive, with customers highlighting durability, accuracy, and simplicity as noteworthy aspects of the product. Conversely, some negative feedback revolved around quality control issues, as some customers received units that didn’t measure as accurately as non-faulty units.
Best Digital Model: General Tools Digital Angle Finder
General Tools Digital Angle Finder
- $24.99
Prices taken at time of publishing.
Key Features
- Five-inch measuring length
- Made of stainless steel
- Weighs 3.2 ounces
- 1.13 x 5.38 x 10.88 inches
What Customers Are Saying
Many users found this digital angle finder to be a necessary addition to any toolbox, especially for those who do any kind of woodworking. Positive reviews highlighted the ease of calibration, as well as precise angular measurements. However, some customers wished that the angle finder had a dedicated off button to preserve the battery life, noting that the display doesn’t turn off until five minutes of inactivity.
Most Durable: Strongman Tools Heavy-Duty Angle Template Tool
Strongman Tools Angle Template Tool
- $24.99
Prices taken at time of publishing.
Key Features
- Has four adjustable screw bolts
- Made of aluminum
- Weighs seven ounces
- 13.07 x 2.44 x 1.14 inches
What Customers Are Saying
Positively, users thought that this heavy-duty angle finder was fairly easy to slide and lock into position, easy to read, and felt sturdy and durable based on the quality of the gauge metal materials. Negatively, some users struggled to use this angle finder with ease and complained about the tightening mechanism wiggling during use.
Best Magnetic: Johnson Level & Tool Magnetic Angle Locator
Johnson Level & Tool Magnetic Angle Locator
- $13.99
Prices taken at time of publishing.
Key Features
- Reads 0 to 90 degrees in four quadrants
- Made of plastic and acrylic materials
- Weighs less than one ounce
- 1.88 x 6.19 x 10.5 inches
What Customers Are Saying
Accuracy, readability, and reliability were noted in several positive customer reviews. Many users also valued the simplicity of this analog metal protractor and appreciated that there weren’t any electrical components that could malfunction. Conversely, the angle locator didn’t provide some users with an accurate reading and was off by one to two degrees.
Best Multi-Purpose: Bosch Digital Angle Finder
Bosch Digital Angle Finder
- $349
Prices taken at time of publishing.
Key Features
- Uses four AA batteries (included)
- Made of aluminum
- Weighs 2.4 pounds
- 17 x 2.4 x 1.4 inches
What Customers Are Saying
Although satisfied users thought the price point of this digital angle finder was relatively high, they included that it was worth the cost. Reviewers stated that this angle finder is designed for carpentry professionals, as the angle readout was both rapid and accurate during multiple uses. While sturdy, some users found that the angle finder was heavier than expected.
Buyer’s Guide
Before purchasing an angle finder, it’s important to understand how each model’s design and specifications impact its performance and user experience. Whether for a home improvement project or as a gift for the woodworker or carpenter in your life, here are four factors to consider before buying an angle finder.
Analog vs. Digital
Angle finders are offered with analog and digital displays. Analog angle finders are typically built with plastic or metal legs that conform to the angle you want to measure, displaying the angle degree with an analog dial and arrow.
Digital angle finders typically have legs similar to analog models but display the angle degree on an LCD. While digital angle finders are more user-friendly, their display typically makes them more expensive than their analog counterparts.
Measurement Range
An angle finder’s measurement range refers to the types of angles it can read. For example, the General Tools Digital Angle Finder measures angles between 0 and 360 degrees, while the larger Bosch Digital Angle Finder finds angles between 0 and 270 degrees.
Intended Purpose
Most angle finders are designed for specific types of DIY projects. For example, some models are best for setting miter angles, while other angle finders are built to read pipe or conduit angles for plumbing or electrical projects. Some tools have a flexible design that can read oddly shaped angles on brick, wood, tile, and other surfaces.
Additional Features
Some angle finders include additional features that help homeowners complete a range of tasks. For example, the multi-purpose Bosch Digital Angle Finder also functions as a level, inclinometer, protractor, and miter calculator.
How To Use an Angle Finder
If you’re taking on more projects at home, you might find yourself faced with new challenges that require you to use a tool that measures angles. While it’s important to research how to find the best angle finder for your needs, it’s equally as important to know how to use your new angle finder. Fortunately, angle finders are easy to use following these two basic steps.
- Step 1: Begin by placing the angle finder on the object you’re working with. Note that angle finders can be used on nearly any object, regardless of its shape or size. To assist you with placing the angle finder against the object, some models use a magnetic base to firmly secure themselves and provide an accurate reading.
- Step 2: Once the angle finder is secured where it should be, give it a moment to calibrate and begin providing measurements. Take note of these measurements and, if equipped, lock the arm of the angle finder to secure the reading.
Additional Angle Finder Tips and Tricks
- To ensure accuracy, take multiple measurement readings in the exact same place you originally secured your angle finder.
- Don’t force your angle finder when placing or pressing it onto the object you’re working with. You want to apply an appropriate amount of pressure so that it sits flush with the surface of the object, but too much force could damage the angle finder.
- To mark the object after taking angular measurements, use a pencil with an eraser rather than a pen.
- If you have shaky hands or struggle to hold something still, consider enlisting someone else to help you hold the angle finder in place.
- If you’re working on a project alone, we recommend opting for a premium digital angle finder that helps you find angles accurately and with minimal effort.
- Make sure you’re measuring an angle on a completely flat or nearly flat surface.
Frequently Asked Questions About Angle Finders
How does an angle finder work?
Most angle finders use two adjustable legs to fit and read inside or outside angles, showing the measurement using a built-in digital or analog display.
How accurate are digital angle finders?
Most digital protractors are extremely accurate. For example, the General Tools Digital Angle Finder has an accuracy of plus or minus 0.1 degrees.
What can I do to increase the longevity of my angle finder?
For continued use of your trustworthy angle finder, we suggest cleaning it after you’re done measuring the necessary angles and making cuts. Wiping it down with a microfiber cloth should work nicely. We also advise users not to submerge an angle finder in water or drop it from heights greater than six inches from the ground.
Do angle finders have any additional uses?
Yes. Most angle finders have multi-purpose legs that double as a ruler or level. In a pinch, an angle finder could be used to measure short distances as an alternative to a tape measure.
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