Name: Dial indicator: outside diameter of blind bore Ø30
Uploaded: 2026-11-03T08:00:00+08:00
Duration: 22 s
Description: Dial indicator: outside diameter of blind bore Ø30: a 22-second captioned video from the KELIBRON 3D measuring lab, with every step written out and a link to try it in the lab.

Dial indicator: outside diameter of blind bore Ø30

Dial indicator: outside diameter of blind bore Ø30: a 22-second reenactment recorded in the KELIBRON 3D lab, with English captions. The steps below are the captions in order, and you can do the same measurement yourself in the lab.

What happens in the video

0:00 Dial indicator: outside diameter of blind bore Ø30
0:04 Set a gauge block of the part's nominal size under the tip, press the stem in to preload it and turn the bezel to zero: from now on, zero stands for the block's size.
0:09 Lift the block away and set the part under the same tip: the stand, its angle and the zero stay put.
0:13 Read while the tip is still on the part: the indicator shows the deviation from the 30.00 mm block; the size is 30.01 mm, within 29.97–30.03 mm.

Read the guide

Instrument careCalibration uncertainty and the unit under testWhether the instrument’s own repeatability belongs in a calibration uncertainty depends on what the reported value is for.