Angle Finders and Angle Finding Tools - EngineerSupply

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Angle Finders

An angle finder is a great tool for measuring angles and for replicating the angle of an existing area. That’s why it’s often used by woodworkers and residential trim installers. An angle finder tool can also be used to measure the slope of a sidewalk or driveway, as well as to determine the angle of a sloped surface (such as for kitchen and bathroom countertop installations). If you’re looking for a corner angle finder that will give you accurate results, be sure to take a look at what we have at Engineer Supply.

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You can calculate slope by determining the ratio of “vertical change” to the “horizontal change” between two points on the same line. Just divide the vertical change by the horizontal change (what’s called “rise over run”). From there, you can determine the slope of a line (which is expressed as a percentage). This information is useful in a number of applications, especially when grading information is critical to the completion of a project.


A blueprint is a reproduction of a technical drawing that uses a contact print process on light-sensitive paper. The original method was invented in 1842 by Sir John Herschel, and it produced white lines on a blue background. The light-sensitive paper turns blue because of a chemical reaction, while leaving the corresponding drawing as white lines. The diazotype method was invented in the early 1940’s, and it left blue lines on a white background. That’s why this method was often referred to as “whiteprinting.” It was a simple process that didn’t need a lot of complicated parts, and equipment maintenance was inexpensive. In both methods, the drawings were produced on vellum or some other paper where light can pass through.

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An angle finder is a great tool for any carpenter or trim installer, because it allows you to measure an angle as well as to replicate it in a larger piece of work. And at Engineer Supply, we have some of the best on the market. We have a broad selection from top-rated manufacturers, so you can be sure to get an angle finder tool that will give you years of extended use. Feel free to look at what we have in our inventory, so you can find a corner angle finder that will meet your specific needs


If you’re looking for one of the best places to find an angle finder tool for your next construction project, Engineer Supply has everything you need. We have some of the best angle finders on the market, and all of them come from top-rated manufacturers. That’s why we’re one of the best choices for purchasing an angle finder online. Feel free to take a look at what we have in stock, so you can find a product that’s right for you!

Frequently Asked Questions

How do I use an angle finder?

Angle finders have two hinged arms and a protractor-like scale or digital device that can read the angle of inside and outside corners. While you’re using an angle finder tool, the surface you’re measuring needs to be free from any high spots and debris. And the protractor arms need to be straight, because it will ensure an accurate reading.

How can I figure out angles?

Angles can be calculated in many different ways, which can include the use of mathematical formulas and logical deduction. Some methods require the use of special tools. If you need to calculate the sum of the angles in a particular shape or figure out how many triangles can be made from its vertices, a triangle rule can be a useful tool. If you want to determine the exact measurement of an angle, you’ll want to use a protractor.

How can I calibrate a digital angle finder?

If you have a digital angle finder tool, it should be regularly calibrated to ensure accurate results. But the exact process for doing so will depend on the model you’re currently using. In some cases, digital measuring tools (including a corner angle finder) may need to be professionally calibrated.

How accurate is a digital angle finder?

A digital angle finder tool is accurate to within one-tenth of a degree, which is more than enough for most woodworking tasks. And they’re fairly easy to use. The only issue with these tools is that their batteries may run out quickly. But once you get accustomed to using an easy-to-read, digital setup tool with a table saw, you’ll want the same level of reliability and convenience when you're performing other tasks.

Where can I buy a quality angle finder?

If you’re looking for one of the best places to find a corner angle finder or some other measuring tool, you can find what you need at Engineer Supply. We have a broad selection from some of the best brands on the market, and we can offer them to you at a reasonable price. Feel free to look at what we have in our store, so you can find a product that will meet your specific needs.

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