For comparative measurements of a part's tolerance against a reference measurement, these Starrett indicators have a balanced dial with positive values on one side and negative values on the other side.

These indicators come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy.

Take direct and comparative measurements with the same indicator. The combination dial has both a continuous scale numbered clockwise around the face and a balanced scale with positive values on one side of the zero and negative values on the other side.

Sets include attachments for indicator mounting.

Mount these indicators to a lathe tool post or a height gauge with the included attachment, also known as a universal shank.

Sets include attachments for indicator mounting.

A slim design lets you measure in tight spots.