Description
Universal Bevel Protractor
- Furnished with a bevel edged extension blade, roller knob and fine adjustment
- Measuring range is 0-320 degree
- Made of high quality carbon steel, practical and durable in use
- With high accuracy of 0.02mm increments this is an easy to use protractor for new & experienced engineers.
This Universal Bevel Head Protractor unit has a range of 320 degrees & is a tool commonly used in precision measurements, especially in machining, woodworking, or metalworking. It allows you to measure and set angles with high accuracy. Here's how to use it effectively:
1. Understanding the Parts of the Protractor
- Protractor Blade/Arm: This is the movable part that can be adjusted to different angles.
- Bevel Head: This part holds the protractor blade at the angle you're measuring and can be rotated around the base.
- Graduations (Degree Scale): The scale shows the angle being measured, typically marked in degrees.
- Locking Mechanism: This locks the protractor blade in place once you've set the angle.
2. Adjusting the Protractor
- Unlock the Locking Mechanism: If the protractor has a lock, release it so that the arm or blade can move freely.
- Move the Blade: Rotate the bevel head or move the blade to adjust it to the angle you want to measure. The angle will be displayed on the graduated scale (typically in degrees).
- Set the Desired Angle: Move the blade to the required angle. Make sure it is aligned precisely
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3. Measuring an Angle
- Place the protractor against the two surfaces you are measuring.
- Read the scale on the protractor where the blade meets the base or angle measurement. Ensure the angle is within the 320-degree range.
4. Locking the Angle in Place
- Once the desired angle is set, use the locking mechanism to secure the blade in that position so it doesn’t move during measurement or transfer.
5. Using the Protractor to Set Angles
- Transfer Angles: To transfer a specific angle to another part of your project, set the protractor to the desired angle and use the bevel head to replicate that angle on a different surface.
- Checking Angles: You can use the tool to check the accuracy of pre-cut angles by comparing them with the protractor's scale.
6. Using the 320° Feature
- The 320-degree scale refers to the total range that the bevel head can rotate. Since protractors usually measure angles in a 360-degree range, a 320-degree range typically means that the protractor can measure angles across a large portion of the full circle but is limited to a specific section.
- If measuring beyond 320 degrees, you may need to adjust the workpiece or use the tool in conjunction with another measurement device.