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General Tools Angle Protractor #17 Stainless Steel Square Head - Measuring Tool for Carpenters & Woodworking Hobbyists

4.5 4.5 out of 5 stars 2,728 ratings
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Square Head
Angle Finder
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Purchase options and add-ons

Material Stainless Steel
Brand General Tools
Color Stainless Steel
Style Square Head
Product Dimensions 8"L x 2"W

About this item

  • PROTRACTOR ARM: It's constructed of durable stainless steel and features a 6" adjustable arm for setting the bevel, transferring angles, and finding your measurement. It's an essential tool and gift idea for a fellow carpenter, student, or machinist.
  • CONSTRUCTION PROTRACTORS: This square head protractor has a 0 to 180-degree semi-circle scale in forward and reverses directions to measure all angles on the job. The 3-3/8" x 2" head helps anchor the protractor against objects to hold it in place.
  • ANGLE FINDER: Quickly and easily identify your angles with our rust-resistant measuring compass. The metal arm locks into place with a knurled thumb nut, allowing you to gauge the measurement of the inclination accurately.
  • MEASUREMENT TOOLS: The project possibilities are endless when using our high-quality square-head protractor tool. You can master the art of building new cabinets, tables, chairs, wooden desks, framing, and various furniture makings.
  • GENERAL TOOLS: We're a recognized leader in designing and developing specialized precision tools dedicated to delivering exceptional customer service. We encourage artisans and DIYers to work smarter, measure better, and repair more productively.
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17 Square Head Stainless Steel Angle Protractor
17 Square Head Stainless Steel Angle Protractor
17 Square Head Stainless Steel Angle Protractor
17 Square Head Stainless Steel Angle Protractor
17 Square Head Stainless Steel Angle Protractor

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General Tools Angle Protractor #17 Stainless Steel Square Head - Measuring Tool for Carpenters & Woodworking Hobbyists


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Product Description

For all the carpentry DIYers out there, the General Tools Angle Protractor Stainless Steel Square Head will guide you through finding your angle points for any home, school, or work project. First, you'll want to loosen the nut in the center of the protractor arm. Place the square head on one leg of the angle while the protractor's nut should be at the angle point. Next, you will rest the arm on the other leg of the spot you're measuring. Then, tighten the nut in the center of the arm and read the angle measurement on the ruler's head. When it comes to angled cuts, it's wise to follow the old saying, "measure twice, cut once." This level tool can help you measure angles precisely. At General Tools, we offer over 1,000 products to choose from. We're proud to provide merchants, artisans, and DIYers worldwide with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection gear.

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General Tools Angle Protractor #17 Stainless Steel Square Head - Measuring Tool for Carpenters & Woodworking Hobbyists
General Tools Angle Protractor #17 Stainless Steel Square Head - Measuring Tool for Carpenters & Woodworking Hobbyists
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Price$15.26$8.99$7.99-6% $14.98
Typical:$15.98
$10.72$8.99
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Get it as soon as Friday, Jan 3
Get it as soon as Friday, Jan 3
Get it as soon as Friday, Jan 3
Get it as soon as Friday, Jan 3
Get it as soon as Friday, Jan 3
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Customer Ratings
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Customer reviews

4.5 out of 5 stars
2,728 global ratings

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Customers say

Customers find the ruler functional and well-made. They appreciate its accuracy, value for money, and ease of use. The markings are sharp and precise, measuring angles accurately. Many consider it a good buy and an inexpensive way to check angles. However, some customers have issues with the screw tightness.

AI-generated from the text of customer reviews

124 customers mention "Functionality"112 positive12 negative

Customers find the ruler useful for general woodworking and shop work. It's lightweight, works well, and is a good value for the money. Some say it's handy and inexpensive to have when grinding.

"...“fit and finish” is as expected with the much cheaper tool but it functions well...." Read more

"this worked good. I ordered another for my other Garrage" Read more

"...It is low-tech and perfect for work where "good enough" certainly is; I'd advise against using it to design a space shuttle or something where the..." Read more

"This product is what it is. Lightweight metal and functional." Read more

99 customers mention "Build quality"77 positive22 negative

Customers appreciate the ruler's build quality. They find it well-made, with a good finish and material. The markings are sharp and precise, making it a good protractor for the price.

"...It's a solid little tool, and very simple...." Read more

"It’s small but sturdy, smooth movement but stays put, good quality materials." Read more

"...Can't beat it for the price, best protractor I've ever had." Read more

"Not the greatest quality, I'm sure there are better ones available" Read more

85 customers mention "Accuracy"65 positive20 negative

Customers appreciate the ruler's accuracy. They find its markings sharp and precise, measuring angles accurately. The ruler is reliable for measuring smaller bends and saw cuts. It's easy to draw the angle with a single placement and can be set to any desired angle.

"...wary about the General Tools version but it appears to be as precise as the Mitutoyo...." Read more

"Product is accurate enough for my use. Thought it had a problem locking down, but I was at fault not engaging it properly. A-1 primo." Read more

"as they give more measuring oportunities; can be lain against three more surfaces then the semi-circle style." Read more

"...keep around the shop and the first one arrived with an inaccurate scale off by about 1 degree, reading 89 degrees when checked against a verified-..." Read more

49 customers mention "Value for money"49 positive0 negative

Customers find the ruler a good value for money. They say it's an inexpensive way to check angles and a nice addition to their collection.

"I needed a protractor in my garage shop and this cost-effective tool does the job nicely" Read more

"General Tools used to be pretty good, especially for budget minded hand tools...." Read more

"...Great tool, and outstanding value for the money." Read more

"...For what it is, it is extremely well priced and durable. I have more of a problem with them being stolen than worn out or damaged...." Read more

39 customers mention "Ease of use"39 positive0 negative

Customers find the ruler easy to use and read. They say it's a simple tool that makes one job even simpler. The lock nut is easy to use and clamps well enough. Overall, customers find the ruler handy and useful for their woodworking projects.

"...It's a solid little tool, and very simple...." Read more

"...Now that I have it there a load of other applications for an easy-to-read protractor. Checking the angle I was sharpening knives was one of them." Read more

"Accurate and good quality. Easy to use. Arm can be tightened to keep your place." Read more

"Very accurate and easy to use. Finish and material are great." Read more

11 customers mention "Metal thickness"11 positive0 negative

Customers appreciate the ruler's metal thickness. They find it durable, lightweight, and functional. Some mention that it's stainless steel, but some say it still sticks to magnets.

"This product is what it is. Lightweight metal and functional." Read more

"...This looked like it would work, and was metal. So we gave it a try...." Read more

"...Small and thin enough for all but the tiniest parts, it’s also reliable for measuring larger bends and even in marking saw cuts...." Read more

"...made out of cheap thin stainless either, I was very surprised at the thickness and quality. Great buy imo." Read more

34 customers mention "Size"23 positive11 negative

Customers have different views on the size of the protractor. Some find it suitable for small projects and well-made with easy-to-read measurements. Others mention issues like the scale being too tiny, the spring washer being oversized to the stud flats, and the fit and finish being marginal.

"It’s small but sturdy, smooth movement but stays put, good quality materials." Read more

"...Extremely accurate and easy to read scale...." Read more

"...It was a bummer that the first one's scale wasn't precise but given how quickly and easily the issue was rectified with absolutely no fuss, I don't..." Read more

"...The angles are easy to read, and the bolt is securely in place...." Read more

40 customers mention "Screw tightness"9 positive31 negative

Customers are unhappy with the ruler's screw tightness. They say the thumb screw locking assembly doesn't stay tight when rotating the measuring beam. The center screw is difficult to tighten, and the arm doesn't stay locked in place. The set screw to lock in the setting doesn't tighten enough to be useful at all. The arm doesn't stay in place, the knurling is not crisp, and most importantly, the thumbscrew at max tightness is still too loose to hold the angle measured.

"Product is accurate enough for my use. Thought it had a problem locking down, but I was at fault not engaging it properly. A-1 primo." Read more

"...From the factory, the washer that aides in the locking was also installed incorrectly (the notch was rotated 90 degrees in the wrong way) which..." Read more

"...The thumb screw locking assembly won't stay tight when you rotate the measuring beam, which is absolutely infuriating when trying to set a..." Read more

"...The thumb screw tightens for people who need that to hold it steady while using it...." Read more

Angles below ~20º hard to use/read
3 out of 5 stars
Angles below ~20º hard to use/read
TLDR; Well-made protractor that lacks the ability to effectively read angles below ~20 degrees.This protractor is well-made out of thick steel. My only complaint is that when trying to measure angles less than about 20 degrees, it's essentially useless for the application I was using it for. I was using it to measure the angles of axe and hatchet blades, and luckily I only needed to measure around 23-27 degrees.As you can see in my attached photos, once you get down to <20 degrees, the long arm no longer creates a wedge/triangle in which to measure against the body of the protractor. You could still use it in other applications by resting the bottom edge of the body/measurement-part of the tool on a straight part of your project, and use the long arm of the tool to measure the angle. This is not ideal, though, when you need a space between the body/measurement-part of the tool and the long arm.
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Top reviews from the United States

  • Reviewed in the United States on May 27, 2024
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    I use a Mitutoyo protractor which is almost identical but much more expensive. I wanted a second one for another area of my shop. I was wary about the General Tools version but it appears to be as precise as the Mitutoyo. The “fit and finish” is as expected with the much cheaper tool but it functions well. (It has the same precise indicator method missing from some of the cheaper machinist’s protractors.
  • Reviewed in the United States on July 18, 2024
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    this worked good. I ordered another for my other Garrage
  • Reviewed in the United States on April 11, 2019
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    I ordered one of these to keep around the shop and the first one arrived with an inaccurate scale off by about 1 degree, reading 89 degrees when checked against a verified-accurate machinist's square. MAKE SURE YOU CHECK YOUR GAUGE AGAINST A MACHINIST SQUARE BEFORE USING IT FOR ANYTHING. Obviously when you're using this to transfer angles for replication or to create the inverse of an angle, where you won't be actually measuring the angle and are just using it as a transfer tool, then this becomes a non-issue but when using it to actually measure an angle it's frustrating. Needless to say, that unit gets one star. However I decided to give the manufacturer/Amazon another shot before leaving my review, and I contacted Amazon about the issue and a replacement was sent immediately, arriving 2 days later. They didn't request the original back so that one can still be used for just transferring angles, and I handed it off to a co-worker with the warning about the scale so he can use it for a transfer tool.

    The replacement is accurate! Note that this isn't a "precision scale," as the marking for reading the angle is itself is about 0.5mm wide and that presents wiggle-room in the potential for mis-reading the scale very slightly, but it gets you in the ballpark, and on the replacement it actually lands on 90 when measured against a machinist's square.

    It's a solid little tool, and very simple. Provided that the scale is marked accurately, there's really not much that can go wrong with this tool aside from being crushed/bent/destroyed through negligence or accident. It is low-tech and perfect for work where "good enough" certainly is; I'd advise against using it to design a space shuttle or something where the difference between 45 and 44 degrees might be a life-or-death situation, though I don't suspect folks doing such things are looking to pinch pennies on angle gauges. It was a bummer that the first one's scale wasn't precise but given how quickly and easily the issue was rectified with absolutely no fuss, I don't feel I can exactly fault the item for that sour first experience. I'd say that if you're in the market for an item like this and trying to keep the cost down, go ahead and take a shot if you're buying from a company that's 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.
    44 people found this helpful
    Report
  • Reviewed in the United States on August 13, 2024
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    I needed a protractor in my garage shop and this cost-effective tool does the job nicely
  • Reviewed in the United States on October 12, 2024
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    This product is what it is. Lightweight metal and functional.
  • Reviewed in the United States on May 18, 2024
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    Product is accurate enough for my use. Thought it had a problem locking down, but I was at fault not engaging it properly. A-1 primo.
    One person found this helpful
    Report
  • Reviewed in the United States on December 25, 2024
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    Good tool that should be in every machinist box for rough angle verification. Decent quality for what it is a guesstimate. If you wanta acurite better buy a optical comparator or a cmm!!!
  • Reviewed in the United States on May 28, 2024
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    I purchased this to help set the angle my CV carburetor float shuts of fuel. Now that I have it there a load of other applications for an easy-to-read protractor. Checking the angle I was sharpening knives was one of them.

Top reviews from other countries

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  • Jader Quadros Pereira
    5.0 out of 5 stars Muito Útil
    Reviewed in Brazil on June 5, 2024
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    Atendeu as expectativas
  • R. S. Solis
    5.0 out of 5 stars Buena Calidad!
    Reviewed in Mexico on February 24, 2022
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    Llego en tiempo y forma. La lectura de los grados es muy clara. El material tiene el grueso correcto. Recomendable.
  • Sammy
    5.0 out of 5 stars Well built
    Reviewed in Australia on August 6, 2022
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    Well built and very accurate for my woodworking needs
  • Douglas Neves Garcia
    5.0 out of 5 stars Excelente produto
    Reviewed in Brazil on April 20, 2023
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    O produto chegou bem embalado e antes do prazo. Excelente custo x Benefício.
  • Luis Alberto Hernández Sanjenis
    5.0 out of 5 stars Articulo esencial
    Reviewed in Mexico on October 16, 2021
    Style: Square HeadPattern Name: Angle FinderVerified Purchase
    Es un articulo esencial en carpintería y en general para todo uso en el hogar y la escuela. Este cumple para mi en todo esto.