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How to measure depth using a dial caliper

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Depth can be measured by inserting the depth rod into the hole you are measuring. When you adjust the jaws using the thumb screw, the rod will protrude from the end of the caliper. Depth can be measured by inserting the depth rod into the hole you are measuring. When you adjust the jaws using the thumb screw, the rod will protrude from the end of the caliper.
Step 1 Position the rod so that it is flat against both the bottom of the hole and an internal side of the hole. Step 2 Move the thumb screw gradually until the end of the end of the beam scale makes contact with the top of the hole.

Step 1 – Position rod 

Position the rod so that it is flat against both the bottom of the hole and an internal side of the hole.

Step 2 – Move thumb screw

Move the thumb screw gradually until the end of the end of the beam scale makes contact with the top of the hole.

Step 3 Turn the lock screw to tighten the jaws so that you can remove your object and take your reading. Step 4 Read the measured value (See How to Read a Dial Caliper).

Step 3 – Turn lock screw

Turn the lock screw to tighten the jaws so that you can remove your object and take your reading.

Step 4 – Read measured value

Read the measured value (See How to read a metric dial caliperor How to read an imperial dial caliper).