Machining

Dial indicators, also known as dial gauges and probe indicators, are instruments used to accurately measure small linear distances, and

Depth micrometers are used to find the depth of blind holes.  The main thing to remember when using a depth

The left height gauge has the vernier scale, while the right one is an electronic height gauge with a digital

Metric gauge block set A gauge block (also known as a gage block, Johansson gauge, slip gauge, or Jo block)

A surface plate is a solid, flat plate used as the main horizontal reference plane for precision inspection, marking out

A Go-NoGo gauge (or Go/no go) refers to an inspection tool used to check a workpiece against its allowed tolerances.

  Three different sets of threading gauges A thread pitch gauge,[1] also known as a screw pitch gauge[2] or pitch

  Feeler gauge set. Notice how it has both metric and imperial measurements recorded on each blade A feeler gauge