CLOCK DIAMETER 50-160 x 0.01 mm 14 tips 4 reduction rings. Product size: 37*14*6cm Bore gauge - a measuring device for some average dimensions, especially diameters. Bore Gauge The instrument usually includes a dial gauge with a scale interval of 0.01 mm. The instrument is equipped with a mechanism (wedge or generator) that allows lateral movement of the external measurement, which results in a change to the actual movement of the sensor pin. For the range up to mm, devices are built with gradations of 1-2 mm. Extension cords are used for the dimensions used. The measurement uncertainty depends on the nominal size of the hole, checking the input signal, standard, measurement conditions (temperature), as well as handling and ranges from several to one micrometer. Source Wikipedia Text available under the Creative Commons Attribution License, Under These Terms, No Restrictions Obligated. The diameter gauge can be used in: metalworking, etc. It worked perfectly in every workshop, but not only that. Advantages of the goods: High quality, Very good and solid workmanship, Accurate, accurate measurement reading, 14 measuring tips Measuring tips made to an appropriate standard Structure of the bore gauge: It gives a very rigid and default measurement system The measuring tool allows you to quickly set the correct dimension Technical data: thickness 0.01mm range 50-160mm Set contains: Diameter gauge 50-160 mm Dial indicator 0.01 / 0-5 mm Extensions: 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110 Reducing rings: 10, 20, 30, 40 Rigid screw-on bore gauge extension Storage box