Dial Test Indicators
Dial test indicators use a pivoting lever stylus and a small dial to detect minute surface variations. This page lists dial test indicators. Their small size lets them reach positions that a larger plunger indicator cannot, which makes them a regular choice for setup work.
Toolmakers and machinists use them for tight spaces and for checking concentricity and alignment where a plunger-type indicator will not fit. Look at the stylus length, dial graduation, the mounting dovetail or stem, and the range of movement.
- Centring parts on a lathe chuck
- Aligning a vice on a milling table
- Checking bore concentricity and face runout
