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Up Your Carpentry and DIY Game With the Best Digital Protractors
When you think of protractors, you probably think of those small tools you used in school during geometry class. Digital protractors do serve the same function, but while geometry protractors are used for drawing 2D angles on paper, digital versions have more practical three-dimensional applications.
Like simpler protractors with two legs, a bolt, and a wingnut, digital protractors feature pretty much the same build, but they also have a digital display for showing the angles being measured. These devices are available in different sizes, accuracies, and designs, depending on the kind of work you’re doing. Check out some of the top digital protractors for 2024 below.Show contentsFirst-Rate 2024 Digital Protractor Reviewed in Detail
Finding Your Next Digital Protractor: A Buyer’s Guide
- Tbvhomm Digital Angle Finder - Best Overall
- Accumaster Digital 7” Angle Finder Ruler - Perfect for Tight Spaces
- Inkuen Digital Angle Gauge - Most Customizable
- General Tools T-Bevel Gauge & Protractor - Elite Design
- Gemred Basic Digital Angle Gauge - Most Durable
Finding Your Next Digital Protractor: A Buyer’s Guide
When you’re making something from scratch, especially something that requires carpentry or engineering skills, you’re going to need the most accurate and reliable tools you can find. In this day and age, almost all of these tools have digital counterparts that are a lot more efficient than traditional versions.
Digital protractors, for example, have become increasingly accurate over time. Thanks to modern technology, they have reduced human error and made it possible to measure angles as precisely as possible using digital displays. But considering how many products are available in this space, it can be easy to get confused, especially if you’re inexperienced. So, check out this guide on how to make an informed purchase when you’re out looking for one of these products.
Benefits of Using Digital Protractors
Whether you’re working on a painting, a sculpture, a desk, a bookshelf, or an architectural blueprint, you need to keep your measurements as accurate as possible — especially when it comes to carpentry and architecture. Even the slightest mistake while taking measurements can lead to big consequences. With digital protractors, you don’t need to recheck or doubt your measurements.
Regardless of how good you are at your profession, you aren’t immune to human error. In fields where accuracy is extremely important, reliability comes in a close second. You could be accurate with all but one of your measurements, and just a single mistake can make an entire project a failure. Using digital protractors, you increase your chances of consistently accurate results by helping eliminate human error.
Things to Consider When Choosing Digital Protractors
Digital protractors have a range of measurement either between 0 and 180 degrees or between 0 and 360 degrees. 360-degree protractors may seem like a better option, but that isn’t always the case. If you’re measuring an area where you know the angle doesn’t exceed 180 degrees, a 360-degree protractor is almost useless and much more likely to give inaccurate measurements.
The length of a protractor’s arm won’t affect its range of measurement, but it will affect its accuracy. Protractors with shorter arms are more prone to giving inaccurate measurements, and versions with longer arms are more accurate because it’s easier to line them up with the measurement. The downside of longer versions, however, is that they can be annoying to store and carry.
Digital protractors, as the name suggests, run on batteries or some other kind of electric power. Fortunately, most of them have replaceable batteries, which means that all you need is backup batteries to use your measuring tool on the go. You don’t want to be replacing the batteries too often though. So you should go for digital protractors with lower power usage.
There’s no point in investing in a digital protractor for its accuracy if you’re still going to get inaccurate readings from errors while reading the display. A bigger, well-lit, and easy-to-read LED display on your tool can help you see your measurements clearly.
If you’re going for a model with added features that can make measuring things even more convenient, you might want to look for protractors featuring a locking highlight, which locks the device’s arms at the required angle. Other desirable features include angle-memory storage and a rotating display.
First-Rate 2024 Digital Protractor Reviewed in Detail1– Best Overall
Tbvhomm’s Digital Angle Finder is a two-in-one tool that serves as a ruler and a protractor. It features a millimeter and inch-scale ruler, as well as a protractor, so it works great for measuring interior and exterior angles during construction, woodworking, drafting, and other DIYs.
This measuring device comes with a large LCD display for easy reading, can take measurements between 0 and 999.9 degrees, has an accuracy of ±0.3 degrees, and has a resolution of ±0.1 degrees. This option is also designed to lock in an angle, while you are taking measurements, by rotating the locking knob and pressing the “hold” button. It also has a “rev” and “zero” button. The multipurpose use of this product, as well as its great design, helped us pick it as the best overall option on this list.2– Perfect for Tight Spaces
The Accumaster Digital 7” Angle Finder Rule is a handy piece of equipment that can precisely measure inside and outside angles ranging from 0 to 360 degrees with an accuracy of ±0.1 degrees. It can do this at angles between 0 and 90 degrees and ±0.2 degrees at 1 to 89 degrees at a resolution of 0.1 degrees. Since it’s a digital protractor, it also provides you with the exact angle that you are working with.
This option is great for measuring things in awkward spots thanks to its “hold” button, which allows the display to capture a measurement until you’re ready. If you’re trying to measure an angle change or difference, this product zeroes at any angle while providing relative measuring.3– Most Customizable
This option by Inkuen provides precise and consistent measurements thanks to its accuracy of ±0.1 degrees and resolution of ±0.05 degrees. It’s not only great for measuring, but also setting angles, measuring the bevel angles of miter saws, checking relative angles, testing and repairing cars, and for using at a digital level.
This new and improved product features a horizontal bubble for determining levels without a battery. This device has a V-groove magnetic base that can be fixed around pipes and other metallic surfaces.
This digital protractor features multiple functions: data storage, an “error” indicator, and a “zero’” function. It also has four measuring units to switch between.4– Elite Design
This commercial-grade digital protractor by General Tools is ideal for measuring angles and cuts thanks to its perfected design and specialized precision. The tool features a 360-degree, stainless-steel blade and sliding bevel, allowing you to set and transfer interior and exterior angles precisely and quickly.
This option’s digital angle gauge has four control buttons with five different functions: powering on and off, “hold”, reading reverse angles, flipping the display, and clearing the readout. The auto-off feature is another useful tool that helps preserve this device’s battery.5– Most Durable
This option from Gemred’s has an aluminum frame and a magnetic base, making it super strong and durable. This protractor has an accuracy of ±0.2 degrees and a resolution of ±0.1 degrees, with a measuring range of 0 to 360 degrees.
The tool has two measuring modes too, one checks the true level, while the other checks relative angles. It also features a large, reversible LCD display with a backlight that makes it easier to read in the dark. If the protractor is used in an incorrect position, the display shows an “error” message indicating incorrect use.
Digital Protractors FAQQ: Will a protractor app on my phone work as a digital protractor?
A: Protractor apps can help you measure angles by turning your phone into a handy pocket protractor, but these apps mostly function as traditional geometry-class protractors, rather than digital protractors. For higher accuracy and more reliability, a phone app just isn’t as functional.Q: How do I reset my digital protractor?
A: Typically, you should be able to reset your device by holding the on-off button for a few seconds, releasing the button, and then waiting another couple of seconds before switching the device on again. Other devices may use a “hold” button for the same function. Consult your tool’s instruction manual for more information on how to use it.Q: What’s the difference between a digital angle finder and my digital protractor?
A: A digital protractor functions primarily as a typical protractor, while a digital angle finder, or gauge, often has more functions. Digital protractors are more suited for people looking for an accurate and dedicated device for measuring angles.
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