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Rainyb

Digital Angle Finder Protractor 0-360 Degree T-Bevel Gauge & Protractor with Horizontal Vertical Bubble & Full LCD Display for Woodworking, Metalworking, Construction

  • Based on 422 reviews
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Nov 25
Order within 1 hour and 37 minutes
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Style: 1 X T-Bevel Protractor


Features

  • High Accuracy:This digital angle finder allows a full range 0-360to measure internal angle,external angle & Contra angle Measuring precision is 0.5, resolution is 0.05 .You can switch between degrees and minutes to Improve the measurement accuracy , meet your requirements for different accuracy.
  • Four Large Control Buttons: Pressing hold button on the digital angle finder to hold the measurement at any angle, it helps the users effectively record the angle values. In addition, including power on/off, read reverse angle, flip display, and clear readout.
  • Digital Sliding T-bevel: Turn the center knob to lock the angle, and use the protractor to copy any angle from 0 to 360 degrees, In addition, easily get 45 degree angle with a T bevel gauge.
  • LCD Display & Bubble Level: This highly protractor tool is equipped with a large LCD display for easy reading and integrates a steel locking knob for adjustment. There is a perfectly positioned bubble level on the end of the digital angle finder body to ensure the level before tracing any angles and making any cuts.
  • Worry Free Customer Service: We back each T bevel gauge with a free 1 year exchange service plus lifetime technology support, giving you complete peace of mind. Please dont hesitate to contact us for support or questions.

Description

Rainyb digital angle finder tools will bring reliability and convenience to your work. Widely used in woodworking furniture, building materials decoration, schools, home DIY, mechanical processing and other fields.1. 360 Degreeinternal and external angle measurement, you can keep the data at any position to facilitate the reading after measurement. 2. Great Locking Feature The tightloose knob works well and you can set the Angle Finder to the tightness that suits your use. 3. The full screen super large LCD displays the measurement data, and the reading is simple and convenient. 4. Fine textured engineering materials, lightweight, wear resistant, non deformed, non scratch. Specification: Working Temperature: 0℃~ +50℃ Working Humidity: ≤85％RH Working Current: ≤20μA Measuring range:0-360° High resolution: 0.05° Accuracy: ±0.5° Battery: CR2032 (3V lithium battery power supply, super battery life)Features: Easily transfer angles and measure depths. Fine quality with a stainless steel blade. Easy to hold and use. Supports measurement between cm and inch. Durable locking nut holds blade securely in any places. Engraved line length: 150 mm/7 inches

Manufacturer: ‎Rainyb


Part Number: ‎NJDC09


Item Weight: ‎5 ounces


Package Dimensions: ‎10.24 x 2.01 x 1.65 inches


Item model number: ‎NJDC09


Batteries: ‎1 Lithium Polymer batteries required. (included)


Style: ‎1 X T-Bevel Protractor


Material: ‎Stainless Steel


Power Source: ‎Battery Powered


Item Package Quantity: ‎1


Included Components: ‎Battery


Batteries Included?: ‎Yes


Batteries Required?: ‎No


Battery Cell Type: ‎Lithium Ion


Date First Available: October 20, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Digital time's for tool
Style: 1 X T-Bevel Protractor
First and foremost, the digital display is exceptionally clear and easy to read, providing precise angle measurements down to the decimal. The illuminated screen is a godsend in dimly lit workspaces, ensuring I can work with utmost accuracy at all times,Another standout feature is the hold function, which freezes the display at the current angle, enabling me to focus on marking or adjusting my workpiece without worrying about the angle changing,This digital angle finder is a game-changer! It’s incredibly precise, with clear readings on the bright display. The build quality is solid, and the magnetic base holds firmly in place. It’s lightweight yet durable, making it perfect for woodworking and metalworking projects. Calibration was easy, and the battery life is excellent. ... show more
Reviewed in the United States on August 1, 2025 by rajendra patel
    • Great digital angle ruler
Style: 1 X T-Bevel Protractor
This digital angle ruler works really well. It is easy to use and gives accurate angle readings. It makes it really easy to draw angles.
Reviewed in the United States on September 27, 2025 by jw
    • + Good value compact easy use; - Sliding ruler 0.5°–1.0° mechanical slop; precise zeroing impossible
Style: 1 X T-Bevel Protractor
This Ranyb [ASIN B0BJTWHXV3] Digital Angle Finder is a good value (at $20), compact, and easy to use. However, due to the inherent nature of the flexible design, the sliding ruler has 0.5° – 1.0° of mechanical slop; and also precise zeroing is practically impossible. The angle finder measures the rotation of the square shaft which slides in the ruler slot. Changing the ruler angle pivots the square shaft. The measurement of the rotation of that square shaft itself is very accurate. However, there is necessarily a small gap between the square shaft and the ruler slot. (Otherwise the ruler would bind and could not slide.) This small gap allows the ruler to rotate slightly without rotating the square shaft, effectively creating 0.5° – 1.0° of mechanical slop (which I measured repeatedly by comparing to a DIN875 class 2 precision 45° miter square). Further, like other angle finders, this Ranyb [ASIN B0BJTWHXV3] Digital Angle Finder zeros at whatever arbitrary ruler angle position exists upon power-up. The (nice) storage position of the sharp, pointed ruler is not precise, so it is practically impossible to absolutely zero the angle finder. For most users, this zeroing uncertainty will likely add roughly another 0.4° – 0.9° of absolute inaccuracy to the above 0.5° – 1.0° relative inaccuracy caused by mechanical slop. (From an engineering perspective, it is frankly silly to display hundredths of degrees. It would be far better to increase the digit font size for readability, and eliminate the display of both the tenths and the hundredths of degrees, as the angle finder's relative accuracy is reasonably at best the stated ±0.5°, However. the absolute accuracy is more likely to be the sum to the two inaccuracies, ie, 0.9° – 1.9°.) Nevertheless, for most users, I suspect the ease of use and flexibility would outweigh these two inherent, unfixable inaccuracy factors. (For my personal use, however, it was necessary to return this Ranyb [ASIN B0BJTWHXV3] Digital Angle Finder, and instead purchase a digital angle finder without any sliding ruler such as the Lexivon [ASIN B0D8J6DYCX], which, also, can be repeatedly zeroed accurately.) ... show more
Reviewed in the United States on March 1, 2025 by swreader
    • Accurate and Easy to Read
Style: 1 X T-Bevel Protractor
This angle finder is excellent for woodworking and home projects. The digital display is clear and easy to read, even in low light. It’s accurate, well-built, and the T-bevel design makes measuring and transferring angles simple. Great addition to my toolbox.
Reviewed in the United States on October 21, 2025 by Tyler Wolfe
    • Accurate
Style: 1 X T-Bevel Protractor
I recently acquired the Digital Angle Finder Protractor, and I must say it has been a game-changer for my DIY projects and woodworking endeavors. This nifty tool offers unparalleled accuracy and convenience, making it an essential addition to any toolbox. First and foremost, the digital display is exceptionally clear and easy to read, providing precise angle measurements down to the decimal. The illuminated screen is a godsend in dimly lit workspaces, ensuring I can work with utmost accuracy at all times. The versatility of this protractor is outstanding. Whether I'm measuring an inside angle, outside angle, or even calculating the difference between two angles, this tool handles it effortlessly. The ability to zero out the measurement at any point allows for seamless transitions between various tasks, saving me valuable time and effort. Durability is a key factor, and this protractor doesn't disappoint. The robust construction ensures it can withstand the rigors of a busy workshop. Plus, it's compact and lightweight, making it easy to carry around and use on the go. Another standout feature is the hold function, which freezes the display at the current angle, enabling me to focus on marking or adjusting my workpiece without worrying about the angle changing. In conclusion, the Digital Angle Finder Protractor has exceeded my expectations. Its accuracy, versatility, durability, and user-friendly design make it an indispensable tool for anyone involved in woodworking or similar projects. I highly recommend this protractor to fellow DIY enthusiasts and professionals alike—it's a worthwhile investment that truly elevates precision and efficiency in any project. ... show more
Reviewed in the United States on September 15, 2023 by James D. Eckert

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