A measuring tool is an instrument used to measure length, shape, weight, etc. Here are some common measurement tools:

1. Calipers: Measuring tools used to measure the size and thickness of objects, divided into two types: micrometers and vernier calipers.

2. Tape measure: a tool used to measure length, usually used to measure larger distances.

3. Level: A measuring tool used to measure whether an object is level, usually used to measure flat surfaces such as the ground or tabletop.

4. Balance: A tool used to measure the weight of an object, divided into different types of balances based on accuracy, such as ordinary balance, analytical balance, precision balance, and electronic balance.

5. Angle ruler: a measuring tool used to measure angles, usually used to measure basic angles such as right angles and 90 degrees.

6. Laser rangefinder: a measuring tool used to measure the distance between two points, with high accuracy and simple operation.

7. Wheel hub dial gauge: a measuring tool used to measure inner diameter or depth, usually used to measure the size or depth of mechanical parts.

8. Barometer: a measuring tool used to measure atmospheric pressure, usually used in aviation, navigation, and other fields.

These measurement tools are widely used in fields such as scientific experiments, industrial production, and construction engineering. When using measuring tools, it is important to follow the correct operating methods to ensure the accuracy and reliability of the measurement.