Starrett 776-7 68819

Cartridge-Type Head. Tungsten carbide ball contacts. Head will accept any Metric Thread AGD style contact. Half-bridge construction, stainless steel body. .375 (9.5mm) mounting diameter allows replacement of standard AGD dial indicators. /-.020 (0.50mm) Short Probe Half-bridge construction, stainless steel body. .375 (9.5mm) mounting diameter allows replacement of standard AGD dial indicators.