importance of a vernier callipers

The Vernier Caliper is a precision instrument that can be used to measure internal and external distances extremely accurately. The example shown below is a manual caliper. Measurements are interpreted from the scale by the user. This is more difficult than using a digital vernier caliper which has an LCD digital display on which the reading appears. The manual version has both an imperial and metric scale.
Manually operated vernier calipers can still be bought and remain popular because they are much cheaper than the digital version. Also, the digital version requires a small battery whereas the manual version does not need any power source.

 The Vernier caliper is typically used in scientific labs and engineering schools where precise measurements are a must. High precision instruments like the Vernier caliper do not leave room for many errors. It is also a great addition to a woodworker’s tools since it comes in handy when working with different projects that require careful and precise measurement. Below are the best uses for a Vernier caliper

1. Measuring Inside Dimensions

The upper set of jaws on the caliper can be used to measure inside dimensions, such as the diameter of a hole on a piece of wood or metal. Measuring the precise diameter of holes in pipes, cylinders, and other hollow objects is very important to many projects or applications. To get a precise measurement, the jaws will just be slid into the hole and the measurement taken from there. The caliper can also be used to measure holes of different shapes, e.g., square, rectangular, cylindrical, or hexagonal. Lastly, the upper jaws can be used to measure the distance between two objects, which can be done by putting the jaws between the objects.

2. Measuring Outside Dimensions

Outside dimensions include things such as the outer diameter of a cylinder and total length or width of an object. For measuring the outer diameter of something with the lower jaws, you will simply clamp them around the object. However, to measure length or width, you will place the object between the caliper jaws.

3. Measuring Depth

As previously mentioned, the Vernier caliper has a depth probe on the rear part. This probe can be extended from the edge of the hole through to the other end for a measurement.