A Screw Gauge, also known as a Micrometer Screw Gauge, is a precision measuring instrument used to measure very small dimensions such as thickness and diameter with high accuracy. It is commonly used where measurements smaller than a vernier caliper are required.
Purpose of a Screw Gauge
The main purpose of a screw gauge is to measure extremely small objects accurately, usually up to 0.01 mm or 0.001 mm, making it ideal for precision work in science and engineering.
How to Use a Screw Gauge
- Place the object between the anvil and spindle.
- Rotate the thimble gently until the object is held firmly.
- Read the measurement from the main scale and circular scale.
- Add both readings to get the final measurement.
Where a Screw Gauge Can Be Used
- Measuring the diameter of wires
- Measuring the thickness of sheets
- Measuring small mechanical parts
- Checking manufacturing tolerances
Benefits of Using a Screw Gauge
- Very high accuracy and precision
- Easy to use and reliable
- Suitable for small-scale measurements
- Durable and long-lasting instrument
- Reduces measurement errors
Labs Where Screw Gauge Is Used
- Physics laboratories
- Engineering labs
- Mechanical workshops
- Educational institutes (schools & colleges)
- Industrial quality control labs
