työntömitta

Työntömitta, known in English as a vernier caliper or simply caliper, is a precision measuring instrument. It is used to measure the external and internal dimensions of an object, as well as its depth. A typical työntömitta consists of a graduated scale, a sliding jaw, and a fixed jaw. The sliding jaw can be moved along the scale to accommodate the object being measured.

There are several types of työntömitta, including vernier, dial, and digital calipers. Vernier calipers use a vernier scale to provide precise readings. Dial calipers feature a dial indicator that shows the measurement. Digital calipers display the measurement on an electronic screen, offering the easiest and most often precise readings.

The accuracy of a työntömitta depends on its quality and the user's skill. High-quality instruments can measure to within a few thousandths of an inch or hundredths of a millimeter. Proper care and calibration are essential to maintain the accuracy of a työntömitta. They are commonly used in machining, engineering, manufacturing, and woodworking for precise measurements.