Divinext Digimatic Caliper 0–150 mm/0–6 inch Metric/Imperial Dual Reading Electronic Aero Space Digital Vernier Caliper with Storage Box Case + Extra Spare Battery + Large LCD Display + IP54 Water Resistant Hardened Stainless Steel Vernier Caliper Micrometer Electronic Gauge Micrometer Ruler Tool Used for 4 Way Measurement Inside + Outside + Depth + Step AEROSPACE Aerospace Digimatic Vernier Caliper 150 mm / 6 inch Metric/Imperial Dual Reading Non-magnetic Electronic Level  (15 cm)

The Digital Caliper (sometimes incorrectly called the Digital Vernier Caliper) is a precision instrument that can be used to measure internal and external distances extremely accurately. Digital calipers are easier to use as the measurement is clearly displayed and also, by pressing the inch/mm button the distance can be read as metric or imperial. The display is turned on with the on/off button. The external jaws should then be brought together until they touch and the zero button should be pressed. The digital caliper can then be used to measure distances. MEASURING EXTERNAL DISTANCES: The material to be measured is placed between the external jaws and they are carefully brought together. The locking screw is tightened so that the jaws do not move apart. The digital display can then be read. The distance can be read by in metric and imperial by pressing the inch/mm button. MEASURING INTERNAL DISTANCES: A digital caliper being used to measure the internal diameter of a piece of copper tube. The internal jaws are adjusted carefully until they touch the internal ‘sides’. The locking screw is tightened so that an accurate measurement can be made even if the jaws are ‘knocked’ against the sides as the jaws are removed from the hole. The measurement is shown on the LCD display. MEASURING DEPTHS: Measuring the depth of a hole can be very difficult. However, using a digital caliper makes this task easy. The base of the vernier caliper rests on the top of the hole and the depth measuring blade is adjusted until it touches the bottom of the hole. The locking screw is tightened and the measurement can be read on the LCD display.