How to Use Dial Calipers

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Dial calipers are used to measure depth, diameter and thickness. Measures Internal Dimensions Dial gives additional resolution for dimension measurement Measures Depth Ruler section give initial value for measured dimension Measures External Dimensions

Determining the measured value Indicates unit system being used Measurement passes 1 in mark Does not quite make it all the way to 3. From the ruler the measurement is 1.2 Show max number of decimal places possible once dial reading is added to initial ruler measurement Dial is at 68 Dial caliper is reading a value of 1.268in

Example: Measuring Width

Example: Measuring Internal Diameter Rubber grommet from robot kit Note: Your measurement depends on how hard the caliper edges press into the flexible rubber. Here, you want the knife edges to contact the grommet but not deform (or flex) the grommet when performing your measurement. 0.398in

Example: Measuring Depth Extend the end into depth being measured

Remember to “Zero” Your Caliper Measurement edges are touching, but the caliper still reads 0.004 inches. This caliper needs to be zeroed! With the measurement edges closed, turn the dial clockwise until the reading is 0.000 inches.