Best Construction Protractors in 2022

Last update: January 3, 2023

Are protractors accurate?

Protractors are generally accurate, but there are a few things that can affect their accuracy. If the protractor is not properly calibrated, it may not be accurate. Additionally, if the person using the protractor does not line it up correctly, it may not be accurate.

Are protractors still used?

Protractors are still used for a variety of purposes, from measuring angles in carpentry and engineering to teaching geometry in schools. They are also used in the construction and surveying industries. While protractors have been replaced by digital devices in many applications, they are still considered essential tools in many fields.

Are protractors used in construction?

Protractors are not typically used in construction, as most construction projects involve objects that are not symmetrical or evenly-angled. However, protractors can be useful for certain aspects of construction, such as creating a precise 90 degree angle, or measuring the degree of an existing angle.

Are there different types of protractors?

There are many different types of protractors available on the market. Some are more accurate than others, and some are designed for specific tasks. The most common type of protractor is the 180-degree protractor, which is used for basic measuring and drawing. There are also 360-degree protractors, which are used for more precise measurements, as well as protractors that are designed for use with specific tools, such as compasses.


Digital Level Protractor Inclinometer Magnetic Level Angle Meter Angle Finder Level Box Angle Measuring Tool for Carpentry,Building, Automobile, Masonry etc Review:


Before purchasing this, I was unaware that I required one. Wow! What a difference this tiny device made when I renovated my kitchen. It was initially bought to precisely angle my new table saw blade so that I could create 45° cuts that matched. I'm now obsessed to making every digital adjustment perfect.Additionally, I no longer utilize a level without something tied to it. Now, getting the 0.00° angle on every edge is essential. That it is magnetic is fantastic.Having the option to switch the readout to show in/ft incline is also very helpful. It measures elevation changes over a distance down to a 1/8in rise or decline, and it works in metric as well.Very helpful. My new kitchen cabinet installation was a lot of pleasure thanks to it. I enjoy getting that 0.00 degree on all four of my levels. far more precise than a sight bubble.



Miter Saw Protractor replace the model #505P-7 for carpenters, plumbers and all building trades also invaluable for home use and do-it-yourselfers. Review:


The accuracy of this instrument is something I appreciate. Although numbers are appealing, you must exercise caution when counting the line they are pointing at. To learn how to utilize it, I had to go to Utube. Make sure to turn the dial to the proper position, which is facing you. I have applied it to a baseboard in the kitchen with unusual angles. I intend to apply it on all of my home's rounded-corner baseboards.



Miter Saw Protractor angle measuring transfer rule replace for the #505P-7 Protractor for miter cuts, plumbers, carpenters plastic red Review:


My mitre saw has endured a great deal of abuse. Since the cuts were so near, I didn't really consider looking for something similar. However, I once discovered this as a suggested add-on and purchased it. Now I wish I had found it sooner. I can easily read it. Maybe get the metal one for heavier use. however, this is effective when used once or twice per month. I've discovered further applications for this in addition to mitre saw alignment of the proper angles. Together with a level, I have used mine to ascertain the angle of my horse shoot sticks. numerous uses good purchase



Johnson Level & Tool and Tool 700 Magnetic Angle Locator Review:


With its magnetic base, this is simple to store on each tool and works well for checking the angle on your table saw or miter saw. The gauge did stick to the face of the gauge briefly, but I was able to fix it. After having an electronic angle finder go out, I opted to go back to a foolproof magnetic gauge. It's excellent to have around the workplace to check angles and you know you will always get a relatively precise ready without having to worry about electronics. This is a nice angle finder to have even though it is obviously not a precise instrument and I wouldn't expect it to be dead on when you require within a half-degree of accuracy for cutting miters and other things.



Ever Ready First Aid Plastic 12" Goniometer 360 Degree ISOM Review:


This product's marketing image is the only thing that's wrong with it. I regularly use goniometers while taking work comp examinations. So much so that I am aware that interpreting the numbers on a goniometer is typically the most difficult aspect of using one. This baby is not accurately depicted in the photo! For simplicity of usage, the numbers are on a white background. I was concerned because I knew that the majority of the evaluations came from laypeople who were recovering from injuries, but for $7, how can you go wrong? The answer is no. There was no melting because the sun didn't deliver my goniometer. This thing really is quite sturdy. I'm overjoyed!



General Tools 822 Digital Angle Finder Rule, 5-Inch Review:


Strongly built, this angle scale. Given how flimsy so many items are these days, the fact that it is actually rather heavy is a positive thing. It's a perfect size for applications where a larger rule is required. Excellent for cabinet work and table saw work. When fixing the angle before locking it, you can adjust the lock so that there is just the right amount of friction to hold the rule in place. The "on" button is quite small and difficult to press with gloves, which is a drawback. There is no off button, nor can the "on" button be held down to turn the device off. I think the "auto off" feature turns it off too quickly. Therefore, if you set your angle setting down for longer than a minute or two without writing it down, you risk losing it. As long as you are using it and measuring angles, it remains on. Last but not least, watch out for accidentally discarding the battery. It isn't set up. It is attached to the package's rear and might get unintentionally thrown away. It is a CR 2032, a widely used size for automobile remotes and garage door openers that is simple to locate.



GemRed 82305 Digital Protractor Angle Finder Stainless Steel Ruler(200mm/7inch) Review:


For a living, I operate a 20-foot press brake. So everything I do revolves around angles. Over the years, I've had a variety of protractors, including Sterrett, Mitutoyo, and five or six others. My reliable protractor is a Sterrett cast iron one that I purchased for a few hundred dollars along with a combination square set. Every hour of every day, I utilize a protractor and a tri-square.But despite its minimal cost, this monster devastates them like a nuclear torpedo.Seriously, this has reduced the time I spend verifying angles by at least half. It is quite simple to operate and has decent accuracy (definitely within the 1/2 degree shop tolerance we have). The fact that the digital readout is simple to read is a blessing for my poor, tired eyes. (Without reading glasses, which I can't wear while operating my machine, I can hardly read my old Sterritt. I had to continually change my glasses. I do have bifocal safety glasses, but using them while using my machine is a nuisance.)However, there are some drawbacks. I am happy to put up with negative aspects.First off, it was made in a subpar manner. I don't anticipate it to live longer than the batteries in my environment. This is alright. I'll just get another one for the money and the time I save using it! but there is a drawback.Second, the battery frequently pops out. Contrary to several other gadgets, the battery compartment is also difficult to tape shut. But whatever. It only falls out far enough for it to turn off, not all the way. All is great once the tray is inserted.Third, after it self-turns off, it forgets that it is zero. However, if you leave it to sit at a specific angle while you eat lunch, when you return it will have reset that angle to zero. Simple enough to repair, but only little annoying.Despite all of these drawbacks, this is a fantastic product for the money. It's a marvel. The three aforementioned factors are the only ones keeping me from giving it five stars, even though I almost did.I would marry it if someone were to create something nearly identical like this, but with somewhat stronger blades and a better mechanism.(Note: I work in a large industrial job shop where I bend 3/8- to 1/2-inch plate most of the time. Additionally, I occasionally bend down to 11ga and up to 1.25 plate. Everything was up to 20 feet long. This has proven to be the greatest approach I've ever had for checking the consistency of an angle along a length of 3/16 plate that is 20 feet long. No contest.)



General Tools 17 Square Head Stainless Steel Angle Protractor, 0 to 180 Degrees, 6-Inch Arm Review:


When I first received one of these to have around the shop, the scale was roughly 1 degree wrong and read 89 degrees when compared to a verified-accurate machinist's square. BEFORE USING YOUR GAUGE FOR ANYTHING, MAKE SURE TO CHECK IT AGAINST A MACHINIST SQUARE. This is obviously not a problem when using it to transfer angles for replication or to make the inverse of an angle, since you won't be measuring the angle and are just using it as a transfer tool, but it is bothersome when using it to measure an angle. That unit automatically receives one star. Before writing my review, I chose to give the manufacturer/Amazon another chance. I contacted Amazon about the problem, and an immediate replacement was issued; it arrived two days later. I sent it to a coworker with the warning about the scale so he can use it as a transfer tool because they didn't ask for the original back, so that one can still be utilized for just transferring angles.The substitution is correct! It should be noted that this isn't a "precision scale" because the marking for reading the angle is only about 0.5mm wide, which leaves room for error if the scale is read incorrectly. Nevertheless, it gets you close, and on the replacement, the angle actually lands on 90 when measured against a machinist's square.This small instrument is reliable and easy to use. There isn't much that can go wrong with this tool, other from it being crushed, deformed, or damaged by accident or neglect, provided that the scale is marked appropriately. It is low-tech and ideal for jobs where "good enough" is definitely acceptable; however, I wouldn't recommend using it to design a space shuttle or anything else where the difference between 45 and 44 degrees might be a matter of life or death, even though I don't think those who do such work are trying to save money on angle gauges. Although it was disappointing that the first one's scale wasn't accurate, the fact that the problem was swiftly and painlessly resolved makes me feel as though I can't really blame the item for the unpleasant first impression. If you're looking for a product like this and are trying to keep costs down, I'd say go ahead and take a chance if you're buying from a business that is easy-breezy with returns/replacements: in my experience, if you catch any accuracy issues quickly Amazon and/or General Tools will take good care of you.



PROTRACTOR, PLASTIC - 7" Review:


This is a GREAT idea, however the quality control is subpar, and Starrett offers no customer support. I was given a first one that was off by more than a degree. The second one I got is EXACTLY RIGHT! I want to thank Amazon once more for your fantastic customer service. If you can find an accurate one, it will be a really useful tool. The scale's circle is wide enough to keep the tool away from drywall's taped corners and is simple enough to see. Instead of returning the first tool right away to Amazon, I decided to speak with Starrett. I treasure the Starrett instruments that belonged to my father. The measuring devices are all top-notch, and back then, Dad only purchased Starrett models. UPDATE: When I contacted Starrett, their general reaction was that since this is a "Chinese handtool," they don't expect accuracy from them.A lovely chew toy for the dog, unless you are one of the majority of people who get a reasonably accurate instrument, in which case it is really helpful. To be quite honest, I don't understand why Starrett permits their brand to be associated with a tool that is inconsistently accurate. The machinist in my family is turning over in his grave. However, I prefer the truthful one.



General Tools 828 Digital Sliding T-Bevel Gauge & Digital Protractor in One Review:


First of all, I base my reviews on the product's description and the price against quality ratio. I gave this T-bevel four stars since I believed it met both requirements. This is a wonderful little tool if you're looking for a $20 or so instrument that measures angles rather accurately. Come on, it costs $20 if you want anything that will measure with a.0001% precision.For the record, I don't have any digital T-Bevels; only better ones. I got it to use for trig calculations, cutting trim, and finding odd angles for framing and woodwork that doesn't require high precision. I examined it against a number of other well-known angles after calibrating it with my reliable square. Its precision has so far been within the range specified on the box, which I feel is. 4 deg ??). That is plenty for what it is utilized for in my opinion. That is probably more accurate than your saw for the vast majority of you, I'm sure.The body is constructed of plastic, as has been mentioned or complained about by others. Despite the fact that it is described as being "Made from impact resistant ABS," it feels cheap and light in the hand ( I know ABS is a light weight plastic, but it just looks like it should weigh more). I'm not sure the issue, however care should be taken with any measuring device in order to keep it accurate. Would you let a pricey square or caliper fall to the ground? no. Stop talking and treat your tools with more care.In conclusion, this is an excellent instrument if you're seeking for a reasonably priced measurement tool that is accurate to 1 degree. Stop browsing at the inexpensive tools if you're looking for something better.


Can I use my phone as a protractor?

Yes, you can use your phone as a protractor. There are a few apps that you can download that will allow you to do this.

Do carpenters use protractors?

Most carpenters use a protractor for a variety of tasks, including measuring angles for cuts, transferring measurements and marking lines. A protractor is a handy tool that helps ensure accuracy in many carpentry projects.

Do construction workers need to know geometry?

Construction workers need to know geometry so they can understand the measurements of the construction site and the materials they are working with. Geometry also helps them visualize the final product and how the various pieces will fit together.

Do engineers use protractor?

Yes, engineers use protractors. Protractors are used to measure angles and can be found in many engineering and construction applications.

How do you set and adjust protractors?

A protractor is a handy tool used to measure angles. You can use a protractor to measure the angle of an object, or to draw an angle on a piece of paper. To set a protractor, align the base of the protractor with one arm of the angle you want to measure. The other arm of the angle should line up with the zero mark on the protractor. To adjust the protractor, move the arms of the protractor until the zero mark lines up with the other arm of the angle. You can also use a prot

Is protractor going to end?

There is no clear answer to this question. Protractor is an open-source tool used for end-to-end testing of AngularJS applications. It is not clear if the developers of Protractor are still actively working on the project or if they have plans to end support for the tool.