The Starrett 25-441J dial indicator has a 0 to 1" measuring range with 0.001" graduations for precise measurement of the rise or drop in a work piece. It has a 0 to 100 counter with one revolution equivalent to 0.1", with a lug-on backing and jeweled bearings. Some dial indicator sets include an adapter, a standard letter of certification, and clamp, tool post holder, snug, and hole attachments. It is suitable for applications such as quality control for machined parts. Dial indicators are also called dial gauges, probes, and electronic indicators. These precision instruments measure small linear distances and object sizes. The dial magnifies the measurement so that it can be easily read by the human eye. Frequently used in manufacturing, laboratories, and other industrial or mechanical fields, dial indicators are used anywhere a small measurement must be found and recorded or transferred, such as checking the variation in tolerance of a workpiece. Standard dial indicators measure the displacement along the axis of the indicator. Dial test indicators are like dial indicators, except that the axis of measurement is perpendicular to the axis of the indicator. Dial and dial test indicators can be analog with a mechanical dial, or electronic with a digital display. Some electronic models transfer the data electronically to a computer for recording and potential manipulation. The L.S. Starrett Company manufactures precision measuring tools, metrology, and testing equipment, and saw blade products. The company, founded in 1880, is headquartered in Athol, MA.
From the Manufacturer
A dial indicator with a shockless, hardened steel gear train nad jewel bearings.